Item
                                      A
                                      B
                                      C
                                      D
                                      E
                                      F

                                    State
                                 LQG Shipper
                                  Facilities
                                    Non-LQG
TSDF Shipper
                                  Facilities
                                 Total (B + C)
                                National Rank
                             % of National Total
                                  (D/16,345)
                                      1
Alabama
                                                                           223
                                                                            16
                                                                           239
                                                                            24
                                                                          1.5%
                                      2
Alaska
                                                                            27
                                                                            15
                                                                            42
                                                                            46
                                                                          0.3%
                                      3
Arizona
                                                                           211
                                                                            14
                                                                           225
                                                                            25
                                                                          1.4%
                                      4
Arkansas
                                                                           122
                                                                            20
                                                                           142
                                                                            32
                                                                          0.9%
                                      5
California
                                                                         1,226
                                                                            26
                                                                          1252
                                                                             2
                                                                          7.7%
                                      6
Colorado
                                                                           107
                                                                            51
                                                                           158
                                                                            30
                                                                          1.0%
                                      7
Connecticut
                                                                           279
                                                                            16
                                                                           295
                                                                            21
                                                                          1.8%
                                      8
Delaware
                                                                            49
                                                                            10
                                                                            59
                                                                            42
                                                                          0.4%
                                      9
District of Columbia
                                                                            23
                                                                             1
                                                                            24
                                                                            50
                                                                          0.1%
                                      10
Florida
                                                                           278
                                                                           171
                                                                           449
                                                                            12
                                                                          2.7%
                                      11
Georgia
                                                                           331
                                                                            52
                                                                           383
                                                                            15
                                                                          2.3%
                                      12
Guam
                                                                             8
                                                                             0
                                                                             8
                                                                            53
                                                                          0.0%
                                      13
Hawaii
                                                                            30
                                                                            19
                                                                            49
                                                                            43
                                                                          0.3%
                                      14
Idaho
                                                                            18
                                                                            21
                                                                            39
                                                                            49
                                                                          0.2%
                                      15
Illinois
                                                                           640
                                                                           230
                                                                           870
                                                                             5
                                                                          5.3%
                                      16
Indiana
                                                                           501
                                                                            14
                                                                           515
                                                                            10
                                                                          3.2%
                                      17
Iowa
                                                                           128
                                                                            32
                                                                           160
                                                                            29
                                                                          1.0%
                                      18
Kansas
                                                                           170
                                                                            44
                                                                           214
                                                                            26
                                                                          1.3%

LQG" hazardous waste generator TSDFs overlap. It is possible that some of these facilities generate hazardous waste and ship it to other receiver TSDFs, while also functioning as receiver TSDFs for hazardous waste shipments from other generators. .
   Individual facilities are tracked by EPA using unique RCRA IDs assigned to each facility. Based on permitting status across various RCRA requirements, it is possible for a TSDF that receives waste from off-site (i.e., a receiver TSDF) to also function as a non-LQG shipper. The 2011 Biennial Report indicates that LQGs are the vast majority of hazardous waste shippers, but does not delineate the volume of hazardous waste shipped by LQGs relative to nonLQG TSDF shippers.
   2011 RCRA Biennial Report Exhibit 1.1. Available at:
http://www.epa.gov/osw/inforesources/data/br11/national11.pdf [17] 2011 RCRA Biennial Report Exhibit 3.1. Available at:
http://www.epa.gov/osw/inforesources/data/br11/national11.pdf
[18] These states are New York, California, Texas, Ohio, Illinois, Pennsylvania, New Jersey, North Carolina, Wisconsin, and Indiana.
                                 Exhibit 2-4
Count of LQGs and Non-LQG TSDF shippers by State from the 2011 RCRA Biennial Report
                                     Item
                                      A
                                      B
                                      C
                                      D
                                      E
                                      F

                                    State
                                 LQG Shipper
                                  Facilities
                                    Non-LQG
TSDF Shipper
                                  Facilities
                                 Total (B + C)
                                National Rank
                             % of National Total
                                  (D/16,345)
                                      19
Kentucky
                                                                           264
                                                                             0
                                                                           264
                                                                            23
                                                                          1.6%
                                      20
Louisiana
                                                                           330
                                                                            37
                                                                           367
                                                                            17
                                                                          2.2%
                                      21
Maine
                                                                            52
                                                                            14
                                                                            66
                                                                            41
                                                                          0.4%
                                      22
Maryland
                                                                           130
                                                                             2
                                                                           132
                                                                            34
                                                                          0.8%
                                      23
Massachusetts
                                                                           406
                                                                            43
                                                                           449
                                                                            12
                                                                          2.7%
                                      24
Michigan
                                                                           346
                                                                           126
                                                                           472
                                                                            11
                                                                          2.9%
                                      25
Minnesota
                                                                           320
                                                                             2
                                                                           322
                                                                            19
                                                                          2.0%
                                      26
Mississippi
                                                                           125
                                                                             0
                                                                           125
                                                                            35
                                                                          0.8%
                                      27
Missouri
                                                                           280
                                                                            55
                                                                           335
                                                                            18
                                                                          2.0%
                                      28
Montana
                                                                            40
                                                                             0
                                                                            40
                                                                            48
                                                                          0.2%
                                      29
Navajo Nation
                                                                             1
                                                                             0
                                                                             1
                                                                            56
                                                                          0.0%
                                      30
Nebraska
                                                                            63
                                                                            20
                                                                            83
                                                                            39
                                                                          0.5%
                                      31
Nevada
                                                                            66
                                                                            33
                                                                            99
                                                                            37
                                                                          0.6%
                                      32
New Hampshire
                                                                           100
                                                                            52
                                                                           152
                                                                            31
                                                                          0.9%
                                      33
New Jersey
                                                                           562
                                                                            99
                                                                           661
                                                                             7
                                                                          4.0%
                                      34
New Mexico
                                                                            39
                                                                             5
                                                                            44
                                                                            45
                                                                          0.3%
                                      35
New York
                                                                         1,473
                                                                             0
                                                                          1473
                                                                             1
                                                                          9.0%
                                      36
North Carolina
                                                                           440
                                                                           102
                                                                           542
                                                                             8
                                                                          3.3%
                                      37
North Dakota
                                                                            18
                                                                             0
                                                                            18
                                                                            52
                                                                          0.1%
                                      39
Ohio
                                                                           712
                                                                           197
                                                                           909
                                                                             4
                                                                          5.6%
                                      40
Oklahoma
                                                                           168
                                                                            22
                                                                           190
                                                                            27
                                                                          1.2%
                                      41
Oregon
                                                                           179
                                                                             0
                                                                           179
                                                                            28
                                                                          1.1%
                                      42
Pennsylvania
                                                                           672
                                                                           177
                                                                           849
                                                                             6
                                                                          5.2%
                                      43
Puerto Rico
                                                                            76
                                                                             3
                                                                            79
                                                                            40
                                                                          0.5%
                                      44
Rhode Island
                                                                            64
                                                                            27
                                                                            91
                                                                            38
                                                                          0.6%
                                      45
South Carolina
                                                                           256
                                                                            27
                                                                           283
                                                                            22
                                                                          1.7%
                                      46
South Dakota
                                                                            32
                                                                             9
                                                                            41
                                                                            47
                                                                          0.3%
                                      47
Tennessee
                                                                           321
                                                                             0
                                                                           321
                                                                            20
                                                                          2.0%
                                      48
Texas
                                                                           990
                                                                             0
                                                                           990
                                                                             3
                                                                          6.1%
                                      49
Trust Territories
                                                                             1
                                                                             2
                                                                             3
                                                                            54
                                                                          0.0%
                                      50
Utah
                                                                           112
                                                                             1
                                                                           113
                                                                            36
                                                                          0.7%
                                      51
Vermont
                                                                            39
                                                                             9
                                                                            48
                                                                            44
                                                                          0.3%
                                      52
Virgin Islands
                                                                             2
                                                                             0
                                                                             2
                                                                            55
                                                                          0.0%
                                      53
Virginia
                                                                           212
                                                                           168
                                                                           380
                                                                            16
                                                                          2.3%
                                      54
Washington
                                                                           417
                                                                             1
                                                                           418
                                                                            14
                                                                          2.6%
                                      55
West Virginia
                                                                            99
                                                                            43
                                                                           142
                                                                            32
                                                                          0.9%
                                      56
Wisconsin
                                                                           381
                                                                           139
                                                                           520
                                                                             9
                                                                          3.2%
                                      57
Wyoming
                                                                            15
                                                                             4
                                                                            19
                                                                            51
                                                                          0.1%
                                                                         Total
                                                                        14,174
                                                                         2,171
                                                                        16,345

                                                                          100%
Source: 2011 RCRA Biennial Report Exhibit 3.1. Available at: http://www.epa.gov/osw/inforesources/data/br11/national11.pdf

National and State Counts of Hazardous Waste shipped offsite for treatment by LQGs and nonLQG TSDF Shippers

The 2011 RCRA Biennial Report also provides data on the quantities of hazardous waste generated and shipped by LQGs. According to the 2011 RCRA Biennial Report, LQGs and nonLQG TSDFs generated 34,334,072 tons of hazardous waste nationally; the bulk of this waste is treated onsite by facilities that also have permitted treatment, storage, and disposal operations. According to the Biennial Report, in 2011 5,951,421 tons of hazardous waste, about 17 percent of the tons generated, was shipped offsite for treatment, storage, or disposal, and therefore subject to accompanying manifest requirements. LQGs and non-LQG TSDF shippers in Texas shipped the largest quantity of hazardous waste offsite (607,321 tons), while LQGs and nonLQG TSDF shippers in North Dakota shipped the fewest, 1,179 tons (Exhibit 2-5).

                                 Exhibit 2-5
Tons of Hazardous Waste Shipped by LQGs and Non-LQG TSDF Shippers According to the 2011 RCRA Biennial
                                    Report
                                     Item
                                      A
                                      B
                                      C
                                      D

                                    State
                                 Tons Shipped
                                National Rank
                      % of National Total (B/5,951,421)
                                      1
Alabama
                                                                       192,988
                                                                            10
                                                                          3.2%
                                      2
Alaska
                                                                         2,010
                                                                            48
                                                                          0.0%
                                      3
Arizona
                                                                        26,453
                                                                            37
                                                                          0.4%
                                      4
Arkansas
                                                                       206,634
                                                                             8
                                                                          3.5%
                                      5
California
                                                                       428,745
                                                                             4
                                                                          7.2%
                                      6
Colorado
                                                                        34,621
                                                                            34
                                                                          0.6%
                                      7
Connecticut
                                                                        24,080
                                                                            38
                                                                          0.4%
                                      8
Delaware
                                                                        42,992
                                                                            29
                                                                          0.7%
                                      9
District of Columbia
                                                                         1,139
                                                                            53
                                                                          0.0%
                                      10
Florida
                                                                        33,513
                                                                            35
                                                                          0.6%
                                      11
Georgia
                                                                        42,299
                                                                            30
                                                                          0.7%
                                      12
Guam
                                                                            88
                                                                            54
                                                                          0.0%
                                      13
Hawaii
                                                                         1,300
                                                                            51
                                                                          0.0%
                                      14
Idaho
                                                                         6,353
                                                                            42
                                                                          0.1%
                                      15
Illinois
                                                                       205,010
                                                                             9
                                                                          3.4%
                                      16
Indiana
                                                                       389,389
                                                                             5
                                                                          6.5%
                                      17
Iowa
                                                                        50,702
                                                                            27
                                                                          0.9%
                                      18
Kansas
                                                                       135,492
                                                                            16
                                                                          2.3%
                                      19
Kentucky
                                                                       181,968
                                                                            11
                                                                          3.1%
                                      20
Louisiana
                                                                       516,470
                                                                             3
                                                                          8.7%
                                      21
Maine
                                                                         2,324
                                                                            47
                                                                          0.0%
                                      22
Maryland
                                                                        54,574
                                                                            25
                                                                          0.9%
                                 Exhibit 2-5
Tons of Hazardous Waste Shipped by LQGs and Non-LQG TSDF Shippers According to the 2011 RCRA Biennial
                                    Report
                                     Item
                                      A
                                      B
                                      C
                                      D

                                    State
                                 Tons Shipped
                                National Rank
                      % of National Total (B/5,951,421)
                                      23
Massachusetts
                                                                        42,013
                                                                            31
                                                                          0.7%
                                      24
Michigan
                                                                       177,852
                                                                            12
                                                                          3.0%
                                      25
Minnesota
                                                                        69,223
                                                                            24
                                                                          1.2%
                                      26
Mississippi
                                                                        72,996
                                                                            22
                                                                          1.2%
                                      27
Missouri
                                                                        80,894
                                                                            18
                                                                          1.4%
                                      28
Montana
                                                                         5,956
                                                                            43
                                                                          0.1%
                                      29
Navajo Nation
                                                                            28
                                                                            55
                                                                          0.0%
                                      30
Nebraska
                                                                        43,653
                                                                            28
                                                                          0.7%
                                      31
Nevada
                                                                        11,932
                                                                            40
                                                                          0.2%
                                      32
New Hampshire
                                                                         3,949
                                                                            45
                                                                          0.1%
                                      33
New Jersey
                                                                       328,224
                                                                             6
                                                                          5.5%
                                      34
New Mexico
                                                                        10,387
                                                                            41
                                                                          0.2%
                                      35
New York
                                                                       165,811
                                                                            15
                                                                          2.8%
                                      36
North Carolina
                                                                        91,039
                                                                            17
                                                                          1.5%
                                      37
North Dakota
                                                                         1,179
                                                                            52
                                                                          0.0%
                                      38
Ohio
                                                                       565,599
                                                                             2
                                                                          9.5%
                                      39
Oklahoma
                                                                        29,941
                                                                            36
                                                                          0.5%
                                      40
Oregon
                                                                        77,564
                                                                            20
                                                                          1.3%
                                      41
Pennsylvania
                                                                       262,668
                                                                             7
                                                                          4.4%

                                      42
Puerto Rico
                                                                        35,153
                                                                            33
                                                                          0.6%
                                      43
Rhode Island
                                                                        16,239
                                                                            39
                                                                          0.3%
                                      44
South Carolina
                                                                       171,165
                                                                            14
                                                                          2.9%
                                      45
South Dakota
                                                                         1,394
                                                                            49
                                                                          0.0%
                                      46
Tennessee
                                                                        52,837
                                                                            26
                                                                          0.9%
                                      47
Texas
                                                                       607,321
                                                                             1
                                                                         10.2%
                                      48
Trust Territories
                                                                            14
                                                                            56
                                                                          0.0%
                                      49
Utah
                                                                        79,429
                                                                            19
                                                                          1.3%
                                      50
Vermont
                                                                         2,592
                                                                            46
                                                                          0.0%
                                      51
Virgin Islands
                                                                         1,325
                                                                            50
                                                                          0.0%
                                      52
Virginia
                                                                        71,565
                                                                            23
                                                                          1.2%
                                      53
Washington
                                                                        75,742
                                                                            21
                                                                          1.3%
                                      54
West Virginia
                                                                        39,478
                                                                            32
                                                                          0.7%
                                      55
Wisconsin
                                                                       173,034
                                                                            13
                                                                          2.9%
                                      56
Wyoming
                                                                         4,079
                                                                            44
                                                                          0.1%

                                                                         Total
                                                                     5,951,421

                                     100%
Source: 2011 RCRA Biennial Report Exhibit 3.1. Available at: http://www.epa.gov/osw/inforesources/data/br11/national11.pdf

<IP_ADDRESS> Small Quantity Generators

Small Quantity Generators (SQGs) are facilities that produce between 100 kilograms and 1,000 kilograms of hazardous waste, in a month. SQGs are far more numerous than LQGs, but produce and ship less hazardous waste, though relatively few SQGs treat waste on site. SQGs are subject to fewer reporting requirements under RCRA than LQGs; as a result data to describe the population of SQGs are more limited.

National and State Counts of SQG Facilities

The universe of SQGs operating in the U.S. is more difficult to accurately characterize than the universe of LQGs, because SQGs are not required by RCRA to submit data to the Biennial Report. SQGs are required to obtain a RCRA ID number and notify state regulators and EPA of their status the first time they generate a sufficient quantity of hazardous waste to meet the SQG threshold. However, SQGs are not required to recertify or follow up in subsequent years, making it difficult to verify that their status has not changed over time. Because the Biennial Report includes only facilities that actively generate data in a given year and are required to report, the total number of operating SQGs is not readily available.

To estimate the size of the SQG universe, this RIA uses the estimation approaches and results in EPA's 2015 Improvements to the Hazardous Waste Generator Regulatory Program proposed rule RIA. In that RIA, EPA pioneered two methodologies to estimate active SQGs; both estimates use the data files that underpin the RCRA Biennial Report.

For the low-end estimate, EPA used the Waste Received (WR) form in the underlying Biennial Report data files to identify the facilities that shipped hazardous waste off-site; the analysis then cross-checked this list against the Site ID form in RCRAInfo to identify active SQGs in 2011. This universe was then supplemented with new SQGs notifying after a certain cutoff date (at which point they may not have been captured on the WR forms) and available state-level information on SQG universes. This low-end estimate of approximately 45,800 SQGs may omit some SQGs that manage hazardous waste on site, or SQGs that TSDFs failed to report on data forms specific to the Biennial Report.

The approach to the high-end estimate of SQGs is similar to that of the low-end estimate, but uses WR forms from each of the three Biennial Report cycles of 2007, 2009, or 2011 to identify SQGs shipping waste off-site in any of those three periods. This approach was similarly supplemented with available state-level data and other information as described for the low-end approach. Because some facilities may have been SQGs for one reporting cycle, but not for others, this approach may lead to an overestimate of the current universe of SQGs, or the universe of SQGs at any specific point in time in recent history. This alternative approach leads to a high-end estimate of approximately 59,700 SQGs nationwide.

This RIA averages the estimates from these two approaches, which leads to an estimate of 52,732 SQGs nationwide. For a small number of states, EPA was able to obtain specific estimates for the count of SQGs within the state; in these cases, no averaging was applied and EPA used the actual count of SQGs instead.

Like LQGs and TSDFs, SQGs are located throughout the U.S., but tend to be concentrated in industrial areas. The 10 states with the most SQGs account for almost 60 percent of the national total. The number of SQGs varies considerably across states. California, the state with the most estimated SQGs, has 5,915, while Montana, the state with the fewest estimated SQGs, has 66 (Exhibit 2-6).

Similar to LQGs, not all of the SQGs identified by EPA as detailed above engage in shipping hazardous waste; EPA separately estimated within the 2015 Improvements to the Hazardous Waste Generator Regulatory Program proposed rule RIA that only 77 percent of SQG-generated hazardous waste is sent offsite for treatment, storage, or disposal. This RIA assumes that the proportion of waste shipped off-site equates to the proportion of SQGs shipping hazardous waste off-site. That is, as shown in Exhibit 2-6, only 77 percent of the estimated number of SQGs in each state is assumed to ship hazardous waste off-site, and thus be subject to the proposed rule.

                                 Exhibit 2-6
                          Estimate of SQGs by State
                                     Item
                                      A
                                      B
                                      C
                                      D
                                      E
                                      F
                                      G

                                    State
                                 Low Count[a]
                                High Count[a]
                              Average (B+C)/2[a]
                                     Rank
                              % Total (D/52,732)
                       Estimated Count of SQGs Shipping
Off-Site (D * 0.77)
                                      1
Alabama
                                                                         1,226
                                                                         1,226
                                                                         1,226
                                                                            16
                                                                          2.3%
                                                                           944
                                      2
Alaska
                                                                            96
                                                                           143
                                                                           120
                                                                            46
                                                                          0.2%
                                                                            92
                                      3
Arizona
                                                                           511
                                                                           770
                                                                           641
                                                                            23
                                                                          1.2%
                                                                           494
                                      4
Arkansas
                                                                           256
                                                                           318
                                                                           287
                                                                            34
                                                                          0.5%
                                                                           221
                                      5
California
                                                                         5,915
                                                                         5,915
                                                                         5,915
                                                                             1
                                                                         11.2%
                                                                          4555
                                      6
Colorado
                                                                           434
                                                                           482
                                                                           458
                                                                            29
                                                                          0.9%
                                                                           353
                                      7
Connecticut
                                                                           756
                                                                         1,092
                                                                           924
                                                                            19
                                                                          1.8%
                                                                           711
                                      8
Delaware
                                                                           155
                                                                           218
                                                                           187
                                                                            44
                                                                          0.4%
                                                                           144
                                      9
District of Columbia
                                                                            36
                                                                            74
                                                                            55
                                                                            52
                                                                          0.1%
                                                                            42
                                      10
Florida
                                                                         3,800
                                                                         3,800
                                                                         3,800
                                                                             3
                                                                          7.2%
                                                                          2926
                                      11
Georgia
                                                                           900
                                                                         1,288
                                                                         1,094
                                                                            17
                                                                          2.1%
                                                                           842
                                      12
Guam
                                                                             3
                                                                             8
                                                                             6
                                                                            54
                                                                          0.0%
                                                                             5
                                      13
Hawaii
                                                                           122
                                                                           165
                                                                           144
                                                                            45
                                                                          0.3%
                                                                           111
                                      14
Idaho
                                                                            79
                                                                            89
                                                                            84
                                                                            49
                                                                          0.2%
                                                                            65
                                      15
Illinois
                                                                         2,958
                                                                         4,897
                                                                         3,928
                                                                             2
                                                                          7.4%
                                                                          3025
                                      16
Indiana
                                                                           790
                                                                         1,156
                                                                           973
                                                                            18
                                                                          1.8%
                                                                           749
                                      17
Iowa
                                                                           471
                                                                           675
                                                                           573
                                                                            27
                                                                          1.1%
                                                                           441
                                      18
Kansas
                                                                           480
                                                                           680
                                                                           580
                                                                            25
                                                                          1.1%
                                                                           447
                                      19
Kentucky
                                                                           355
                                                                           469
                                                                           412
                                                                            31
                                                                          0.8%
                                                                           317
                                      20
Louisiana
                                                                           705
                                                                         1,068
                                                                           887
                                                                            20
                                                                          1.7%
                                                                           683
                                      21
Maine
                                                                           304
                                                                           304
                                                                           304
                                                                            33
                                                                          0.6%
                                                                           234
                                      22
Maryland
                                                                           974
                                                                         1,780
                                                                         1,377
                                                                            13
                                                                          2.6%
                                                                          1060
                                      23
Massachusetts
                                                                         2,683
                                                                         2,683
                                                                         2,683
                                                                             5
                                                                          5.1%
                                                                          2066
                                      24
Michigan
                                                                         1,486
                                                                         2,194
                                                                         1,840
                                                                             8
                                                                          3.5%
                                                                          1417
                                      25
Minnesota
                                                                         1,366
                                                                         1,366
                                                                         1,366
                                                                            14
                                                                          2.6%
                                                                          1052
                                      26
Mississippi
                                                                           210
                                                                           286
                                                                           248
                                                                            37
                                                                          0.5%
                                                                           191
                                      27
Missouri
                                                                         1,279
                                                                         1,727
                                                                         1,503
                                                                            11
                                                                          2.9%
                                                                          1157
                                      28
Montana
                                                                            55
                                                                            77
                                                                            66
                                                                            51
                                                                          0.1%
                                                                            51
                                      29
Navajo Nation
                                                                             6
                                                                             6
                                                                             6
                                                                            53
                                                                          0.0%
                                                                             5
                                      30
Nebraska
                                                                           226
                                                                           273
                                                                           250
                                                                            36
                                                                          0.5%
                                                                           193
                                      31
Nevada
                                                                           196
                                                                           280
                                                                           238
                                                                            38
                                                                          0.5%
                                                                           183
                                      32
New Hampshire
                                                                           201
                                                                           201
                                                                           201
                                                                            41
                                                                          0.4%
                                                                           155
                                 Exhibit 2-6
                          Estimate of SQGs by State
                                     Item
                                      A
                                      B
                                      C
                                      D
                                      E
                                      F
                                      G

                                    State
                                 Low Count[a]
                                High Count[a]
                              Average (B+C)/2[a]
                                     Rank
                              % Total (D/52,732)
                       Estimated Count of SQGs Shipping
Off-Site (D * 0.77)
                                      33
New Jersey
                                                                           850
                                                                           850
                                                                           850
                                                                            21
                                                                          1.6%
                                                                           655
                                      34
New Mexico
                                                                           156
                                                                           236
                                                                           196
                                                                            42
                                                                          0.4%
                                                                           151
                                      35
New York
                                                                         1,983
                                                                         3,255
                                                                         2,619
                                                                             7
                                                                          5.0%
                                                                          2017
                                      36
North Carolina
                                                                         1,169
                                                                         1,786
                                                                         1,478
                                                                            12
                                                                          2.8%
                                                                          1138
                                      37
North Dakota
                                                                            62
                                                                            78
                                                                            70
                                                                            50
                                                                          0.1%
                                                                            54
                                      38
Ohio
                                                                         2,041
                                                                         3,240
                                                                         2,641
                                                                             6
                                                                          5.0%
                                                                          2034
                                      39
Oklahoma
                                                                           379
                                                                           502
                                                                           441
                                                                            30
                                                                          0.8%
                                                                           340
                                      40
Oregon
                                                                           235
                                                                           285
                                                                           260
                                                                            35
                                                                          0.5%
                                                                           200
                                      41
Pennsylvania
                                                                         2,721
                                                                         4,293
                                                                         3,507
                                                                             4
                                                                          6.7%
                                                                          2700
                                      42
Puerto Rico
                                                                            96
                                                                           115
                                                                           106
                                                                            47
                                                                          0.2%
                                                                            82
                                      43
Rhode Island
                                                                           700
                                                                           700
                                                                           700
                                                                            22
                                                                          1.3%
                                                                           539
                                      44
South Carolina
                                                                           485
                                                                           722
                                                                           604
                                                                            24
                                                                          1.1%
                                                                           465
                                      45
South Dakota
                                                                           182
                                                                           256
                                                                           219
                                                                            39
                                                                          0.4%
                                                                           169
                                      46
Tennessee
                                                                           442
                                                                           710
                                                                           576
                                                                            26
                                                                          1.1%
                                                                           444
                                      47
Texas
                                                                         1,471
                                                                         2,164
                                                                         1,818
                                                                             9
                                                                          3.4%
                                                                          1400
                                      48
Trust Territories
                                                                             3
                                                                             5
                                                                             4
                                                                            56
                                                                          0.0%
                                                                             3
                                      49
Utah
                                                                           174
                                                                           205
                                                                           190
                                                                            43
                                                                          0.4%
                                                                           146
                                      50
Vermont
                                                                           185
                                                                           250
                                                                           218
                                                                            40
                                                                          0.4%
                                                                           168
                                      51
Virgin Islands
                                                                             6
                                                                             5
                                                                             6
                                                                            54
                                                                          0.0%
                                                                             5
                                      52
Virginia
                                                                         1,274
                                                                         2,029
                                                                         1,652
                                                                            10
                                                                          3.1%
                                                                          1272
                                      53
Washington
                                                                           532
                                                                           604
                                                                           568
                                                                            28
                                                                          1.1%
                                                                           437

                                      54
West Virginia
                                                                           280
                                                                           376
                                                                           328
                                                                            32
                                                                          0.6%
                                                                           253
                                      55
Wisconsin
                                                                         1,227
                                                                         1,227
                                                                         1,227
                                                                            15
                                                                          2.3%
                                                                           945
                                      56
Wyoming
                                                                            75
                                                                            99
                                                                            87
                                                                            48
                                                                          0.2%
                                                                            67

                                                                         Total
                                                                        45,762
                                                                        59,702
                                                                        52,732

                                                                        100.0%
                                                                        40,604
Source: 2015 Improvements to the Hazardous Waste Generator Regulatory Program proposed rule RIA. Available at: http://www.regulations.gov/#!documentDetail;D=EPA-HQ-RCRA-2012-0121-0002.  a In cases where the Improvements to the Hazardous Waste Generator Regulatory Program proposed rule RIA contained specific estimates for the count of SQGs in a given state, no averaging is applied, and columns B, C, and D report the actual count of SQGs within the state.

SQGs Operating under Reclamation Agreements

Even among SQGs that ship waste off-site, not all hazardous waste shipped requires a manifest. Specifically, hazardous waste that is transported and covered under a bona-fide reclamation agreement (BFRA) is not required to have accompanying manifests, unless the SQG is in a state that explicitly requires manifests for hazardous waste sent for reclamation and recovery.

EPA estimates that 10 percent of all SQG-generated hazardous waste is managed off-site via reclamation and recovery. Note that this fraction is a subset of the 77 percent of SQG-generated hazardous waste shipped off-site. Correspondingly, if it is assumed that SQGs who use BFRAs manage all of their hazardous waste in this way, then the universe of SQG shippers who manifest is smaller than the universe of SQG hazardous waste shippers, because some SQG shippers manage their hazardous waste via off-site reclamation and recovery, which in most states does not require a RCRA manifest.

This RIA therefore assumes that 10 percent of the SQG-generated federal hazardous waste, and
10 percent of the SQGs in each state are governed by BFRAs, and calculates the total universe of SQGs who ship hazardous waste and may be affected by the proposed rule by subtracting 10 percent of total hazardous waste shipped by SQGs, and 10 percent of the SQGs themselves, from the total estimate of SQG shippers in each state. For example, as shown in Exhibit 2-6, this RIA estimates 1,226 SQGs in Alabama, of which 944 (77 percent) are estimated to ship hazardous waste off-site. Given the assumption that 10 percent of SQG-generated hazardous waste (and thus, correspondingly, 10 percent of SQGs, consistent with assumptions above) is shipped offsite for reclamation and recovery purposes, 123 SQGs in Alabama (10 percent of 1,226) are assumed to ship hazardous waste that does not require a manifest. The resulting estimate of SQG shippers who manifest in Alabama is 821. Exhibit 2-7 below repeats this calculation for each state; in total, this RIA estimates 35,330 SQG shippers who manifest as compared to 40,604 SQG shippers.

                                 Exhibit 2-7
Count of SQGs who Manifest for Shipments of Hazardous Waste Off-Site, by State
                                     Item
                                      A
                                      B
                                      C
                                      D
                                      D
                                      E

                                    State
Estimated
                                Count of SQGs
                                  Estimated
                                   Count of
                                     SQGs
                         Shipping OffSite (B * 0.77)
Estimated Count of
                                SQGs Shipping
                                 Off-Site for
                               Reclamation and
                              Recovery (B * 0.1)
                              Estimated Count of
                                   SQGs who
                                   Manifest
                                  (C  -  D)
                              % Total (D/35,330)
                                      1
Alabama
                                                                         1,226
                                                                           944
                                                                           123
                                                                           821
                                                                          2.3%
                                      2
Alaska
                                                                           120
                                                                            92
                                                                            12
                                                                            80
                                                                          0.2%
                                      3
Arizona
                                                                           641
                                                                           494
                                                                            64
                                                                           429
                                                                          1.2%
                                      4
Arkansas
                                                                           287
                                                                           221
                                                                            29
                                                                           192
                                                                          0.5%
                                      5
California
                                                                         5,915
                                                                          4555
                                                                           592
                                                                         3,963
                                                                         11.2%
                                      6
Colorado
                                                                           458
                                                                           353
                                                                            46
                                                                           307
                                                                          0.9%
                                      7
Connecticut
                                                                           924
                                                                           711
                                                                            92
                                                                           619
                                                                          1.8%
                                      8
Delaware
                                                                           187
                                                                           144
                                                                            19
                                                                           125
                                                                          0.4%
                                      9
District of Columbia
                                                                            55
                                                                            42
                                                                             6
                                                                            37
                                                                          0.1%
                                      10
Florida
                                                                         3,800
                                                                          2926
                                                                           380
                                                                         2,546
                                                                          7.2%
                                      11
Georgia
                                                                         1,094
                                                                           842
                                                                           109
                                                                           733
                                                                          2.1%
                                      12
Guam
                                                                             6
                                                                             5
                                                                             1
                                                                             4
                                                                          0.0%
                                      13
Hawaii
                                                                           144
                                                                           111
                                                                            14
                                                                            96
                                                                          0.3%
                                      14
Idaho
                                                                            84
                                                                            65
                                                                             8
                                                                            56
                                                                          0.2%
                                      15
Illinois
                                                                         3,928
                                                                          3025
                                                                           393
                                                                         2,631
                                                                          7.4%
                                      16
Indiana
                                                                           973
                                                                           749
                                                                            97
                                                                           652
                                                                          1.8%
                                      17
Iowa
                                                                           573
                                                                           441
                                                                            57
                                                                           384
                                                                          1.1%
                                      18
Kansas
                                                                           580
                                                                           447
                                                                            58
                                                                           389
                                                                          1.1%
                                      19
Kentucky
                                                                           412
                                                                           317
                                                                            41
                                                                           276
                                                                          0.8%
                                      20
Louisiana
                                                                           887
                                                                           683
                                                                            89
                                                                           594
                                                                          1.7%
                                      21
Maine
                                                                           304
                                                                           234
                                                                            30
                                                                           204
                                                                          0.6%
                                      22
Maryland
                                                                         1,377
                                                                          1060
                                                                           138
                                                                           923
                                                                          2.6%
                                      23
Massachusetts
                                                                         2,683
                                                                          2066
                                                                           268
                                                                         1,798
                                                                          5.1%
                                      24
Michigan
                                                                         1,840
                                                                          1417
                                                                           184
                                                                         1,233
                                                                          3.5%
                                      25
Minnesota
                                                                         1,366
                                                                          1052
                                                                           137
                                                                           915
                                                                          2.6%
                                      26
Mississippi
                                                                           248
                                                                           191
                                                                            25
                                                                           166
                                                                          0.5%
                                      27
Missouri
                                                                         1,503
                                                                          1157
                                                                           150
                                                                         1,007
                                                                          2.9%
                                      28
Montana
                                                                            66
                                                                            51
                                                                             7
                                                                            44
                                                                          0.1%
                                      29
Navajo Nation
                                                                             6
                                                                             5
                                                                             1
                                                                             4
                                                                          0.0%
                                 Exhibit 2-7
Count of SQGs who Manifest for Shipments of Hazardous Waste Off-Site, by State
                                     Item
                                      A
                                      B
                                      C
                                      D
                                      D
                                      E

                                    State
Estimated
                                Count of SQGs
                                  Estimated
                                   Count of
                                     SQGs
                         Shipping OffSite (B * 0.77)
Estimated Count of
                                SQGs Shipping
                                 Off-Site for
                               Reclamation and
                              Recovery (B * 0.1)
                              Estimated Count of
                                   SQGs who
                                   Manifest
                                  (C  -  D)
                              % Total (D/35,330)
                                      30
Nebraska
                                                                           250
                                                                           193
                                                                            25
                                                                           167
                                                                          0.5%
                                      31
Nevada
                                                                           238
                                                                           183
                                                                            24
                                                                           159
                                                                          0.5%
                                      32
New Hampshire
                                                                           201
                                                                           155
                                                                            20
                                                                           135
                                                                          0.4%
                                      33
New Jersey
                                                                           850
                                                                           655
                                                                            85
                                                                           570
                                                                          1.6%
                                      34
New Mexico
                                                                           196
                                                                           151
                                                                            20
                                                                           131
                                                                          0.4%
                                      35
New York
                                                                         2,619
                                                                          2017
                                                                           262
                                                                         1,755
                                                                          5.0%
                                      36
North Carolina
                                                                         1,478
                                                                          1138
                                                                           148
                                                                           990
                                                                          2.8%
                                      37
North Dakota
                                                                            70
                                                                            54
                                                                             7
                                                                            47
                                                                          0.1%
                                      38
Ohio
                                                                         2,641
                                                                          2034
                                                                           264
                                                                         1,769
                                                                          5.0%
                                      39
Oklahoma
                                                                           441
                                                                           340
                                                                            44
                                                                           295
                                                                          0.8%
                                      40
Oregon
                                                                           260
                                                                           200
                                                                            26
                                                                           174
                                                                          0.5%
                                      41
Pennsylvania
                                                                         3,507
                                                                          2700
                                                                           351
                                                                         2,350
                                                                          6.7%
                                      42
Puerto Rico
                                                                           106
                                                                            82
                                                                            11
                                                                            71
                                                                          0.2%
                                      43
Rhode Island
                                                                           700
                                                                           539
                                                                            70
                                                                           469
                                                                          1.3%
                                      44
South Carolina
                                                                           604
                                                                           465
                                                                            60
                                                                           404
                                                                          1.1%
                                      45
South Dakota
                                                                           219
                                                                           169
                                                                            22
                                                                           147
                                                                          0.4%
                                      46
Tennessee
                                                                           576
                                                                           444
                                                                            58
                                                                           386
                                                                          1.1%
                                      47
Texas
                                                                         1,818
                                                                          1400
                                                                           182
                                                                         1,218
                                                                          3.4%
                                      48
Trust Territories
                                                                             4
                                                                             3
                                                                             0
                                                                             3
                                                                          0.0%
                                      49
Utah
                                                                           190
                                                                           146
                                                                            19
                                                                           127
                                                                          0.4%
                                      50
Vermont
                                                                           218
                                                                           168
                                                                            22
                                                                           146
                                                                          0.4%

                                     Item
                                      A
                                      B
                                      C
                                      D
                                      D
                                      E

                                    State
Estimated
                                Count of SQGs
                                  Estimated
                                   Count of
                                     SQGs
                         Shipping OffSite (B * 0.77)
Estimated Count of
                                SQGs Shipping
                                 Off-Site for
                               Reclamation and
                              Recovery (B * 0.1)
                              Estimated Count of
                                   SQGs who
                                   Manifest
                                  (C  -  D)
                              % Total (D/35,330)
                                      51
Virgin Islands
                                                                             6
                                                                             5
                                                                             1
                                                                             4
                                                                          0.0%
                                      52
Virginia
                                                                         1,652
                                                                          1272
                                                                           165
                                                                         1,107
                                                                          3.1%
                                      53
Washington
                                                                           568
                                                                           437
                                                                            57
                                                                           381
                                                                          1.1%
                                      54
West Virginia
                                                                           328
                                                                           253
                                                                            33
                                                                           220
                                                                          0.6%
                                      55
Wisconsin
                                                                         1,227
                                                                           945
                                                                           123
                                                                           822
                                                                          2.3%
                                      56
Wyoming
                                                                            87
                                                                            67
                                                                             9
                                                                            58
                                                                          0.2%

                                                                         Total
                                                                        52,732
                                                                        40,604
                                                                         5,273
                                                                        35,330
                                                                        100.0%

Six states require manifests for SQG-generated hazardous waste shipped off-site for reclamation and recovery. The entity counts affected by these requirements are estimated in Section <IP_ADDRESS>.

National and State Quantities of Hazardous Waste shipped offsite for treatment by SQGs

Waste tonnage data for SQGs is not consistently available in the RCRA Biennial Report. EPA's 2015 Improvements to the Hazardous Waste Generator Regulatory Program proposed rule RIA provides estimates of waste tonnage shipped by SQGs, but does not do so on a state-by-state basis. An interpolation of the methodology in that RIA on a state-by-state basis is presented in Appendix A.

<IP_ADDRESS> Conditionally Exempt Small Quantity Generators

Conditionally Exempt Small Quantity Generators (CESQGs) produce hazardous waste in quantities less than or equal to 100 kilograms in a month. CESQGs are the most numerous of all generator types. While RCRA does not require reporting by CESQGs at the national level, 14 authorized state RCRA programs require CESQGs to notify and report their waste activity.
Estimates of the number of CESQGs are interpolated from these state counts up to the national level. This RIA uses ratios of LQGs to CESQGs and SQGs to CESQGs developed in the Improvements to the Hazardous Waste Generator Regulatory Program proposed rule RIA to estimate a national universe of CESQGs. These ratios are based on the number of CESQGs reported by 14 states. Exhibit 2-8 reproduces Exhibit 2-2 from the Improvements to the Hazardous Waste Generator Regulatory Program proposed rule RIA and documents these ratios.

                                 Exhibit 2-8
                      Ratios of CESQGs to SQGs and LQGs
                                     Item
                                      A
                                      B
                                      C
                                      D
                                      E
                                      F
                                      G
                                      H

                                    State
                                   Count of
 LQGs
                                Count of SQGs
Count of
CESQGs
                           Ratio of CESQGs to SQGs
                                   Ratio of
 CESQGs to
LQGs (E/B)

                                     Low
                                     High

                                  Low (E/D)
High (E/C)

                                      1
Alabama
                                                                           223
                                                                         1,226
                                                                         1,226
                                                                         3,390
                                                                           2.8
                                                                           2.8
                                                                         15.2
                                      2
Arizona
                                                                           210
                                                                           511
                                                                           770
                                                                         1,774
                                                                           2.3
                                                                           3.5
                                                                          8.4
                                      3
California
                                                                         1,223
                                                                         5,915
                                                                         5,915
                                                                        21,000
                                                                           3.6
                                                                           3.6
                                                                         17.2
                                      4
Florida
                                                                           279
                                                                         3,800
                                                                         3,800
                                                                        19,350
                                                                           5.1
                                                                           5.1
                                                                         69.4
                                      5
Hawaii
                                                                            31
                                                                           122
                                                                           165
                                                                           692
                                                                           4.2
                                                                           5.7
                                                                         22.3
                                      6
Massachusetts
                                                                           402
                                                                         2,683
                                                                         2,683
                                                                        12,559
                                                                           4.7
                                                                           4.7
                                                                         31.2
                                      7
Maine
                                                                            52
                                                                           304
                                                                           304
                                                                           949
                                                                           3.1
                                                                           3.1
                                                                         18.3
                                      8
Minnesota
                                                                           320
                                                                         1,366
                                                                         1,366
                                                                        21,743
                                                                          15.9
                                                                          15.9
                                                                         67.9
                                      9
Nevada
                                                                            68
                                                                           196
                                                                           280
                                                                         3,187
                                                                          11.4
                                                                          16.3
                                                                         46.9
                                      10
New Hampshire
                                                                           100
                                                                           201
                                                                           201
                                                                         1,818
                                                                           9.0
                                                                           9.0
                                                                         18.2
                                      11
New Jersey
                                                                           575
                                                                           850
                                                                           850
                                                                         9,000
                                                                          10.6
                                                                          10.6
                                                                         15.7
                                      12
Rhode Island
                                                                            65
                                                                           700
                                                                           700
                                                                         2,100
                                                                           3.0
                                                                           3.0
                                                                         32.3
                                      13
Washington
                                                                           412
                                                                           532
                                                                           604
                                                                        22,315
                                                                          36.9
                                                                          41.9
                                                                         54.2
                                      14
Wisconsin
                                                                           394
                                                                         1,227
                                                                         1,227
                                                                         9,323