Appendix A

Table A1. Respondents and Other Assumptions

Description	Number	Source

Annual Number of Construction Starts > 1 acre	84,472 	Table 1.
Distribution of Model Projects for each Model Project Size and Duration
Category for three Project Types (Residential Construction,
Nonresidential Construction, and Transportation). [Construction ELG
Technical Development Document]

Annual Number of Construction Starts 1 - 4.99 acres	47,969 	Table 1.
Distribution of Model Projects for each Model Project Size and Duration
Category for three Project Types (Residential Construction,
Nonresidential Construction, and Transportation). [Construction ELG
Technical Development Document]

Annual Number of Construction Starts > 5 acres	36,503 	Table 1.
Distribution of Model Projects for each Model Project Size and Duration
Category for three Project Types (Residential Construction,
Nonresidential Construction, and Transportation). [Construction ELG
Technical Development Document]

Total Number of Small MS4s Issued by EPA	361 	Stormwater Rulemaking MS4
Analysis - EPA

Total Number of Small MS4s Issued by Authorized States	6,271 	Stormwater
Rulemaking MS4 Analysis - EPA

Total Number of Industrial Facilities eligible for the "no exposure" to
stormwater waiver from Phase I regulations.	36,377 	Economic Analysis of
the Final Phase II Stormwater Rule (10/01/1999) as cited in NPDES
Stormwater Program Phase II (EPA ICR No 1820.04, OMB Control No.
2040-0211) corrected by Jack Faulk, personal communication. Th
04/08/2008: "I believe the no exposure number is five times higher than
our current thinking.  I would use 36377 as the number of sites covered
by a no exposure certification." Reaffirmed by Brian Rittenhouse
9/22/2011.

 	 	 

Total Number of Existing Major NPDES Permits - Municipal	4,123 	PCS or
ICIS Query: Standard (individual) NPDES Municipal

Total Number of Existing Minor NPDES Permits - Municipal	9,471 	PCS or
ICIS Query: Standard (individual) NPDES Municipal

Total Number of Existing Sludge Only NPDES Permits - Municipal	954 	PCS
or ICIS Query: Sludge Only Municipal

Total Number of Existing Major NPDES Permits - Nonmunicipal	2,036 	PCS
or ICIS Query: Standard (individual) NPDES Nonmunicipal

Total Number of Existing Minor NPDES Permits - Nonmunicipal	28,133 	PCS
or ICIS Query: Standard (individual) NPDES Nonmunicipal

Total Number of Existing Sludge Only NPDES Permits - Nonmunicipal	329 
PCS or ICIS Query: Sludge Only Nonmunicipal

Total Number of Existing Major NPDES Permits - Federal	80 	PCS or ICIS
Query: Standard (individual) NPDES Federal

Total Number of Existing Minor NPDES Permits - Federal	510 	PCS or ICIS
Query: Standard (individual) NPDES Federal

 	 	 

Annual Number of New Major NPDES Permits - Nonmunicipal Industrial	19 
PCS or ICIS Query: New STANDARD NPDES in the previous 3 years
Nonmunicipal

Annual Number of New Minor NPDES Permits - Nonmunicipal Industrial	785 
PCS or ICIS Query: New STANDARD NPDES in the previous 3 years
Nonmunicipal

Annual Number of New NPDES Permits - Nonmunicipal Stormwater	86 	PCS or
ICIS Query: New STORMWATER NPDES in last 3 years Nonmunicipal

 	 	 

Total Number of Existing NPDES Permits - Nonmunicipal Industrial	30,169 
PCS or ICIS Query: Standard (individual) NPDES Nonmunicipal

Total Number of Existing NPDES Permits - Nonmunicipal Stormwater
(individual Permit)	783 	PCS or ICIS Query: STORMWATER (individual)
NPDES Nonmunicipal

 	 	 

Total Number of NPDES General Permits Issued by EPA (Not permittees
covered by general permits, but general permits)	27 	PCS or ICIS Query:
General Permits (not permittees)

Total Number of NPDES General Permits Issued by Authorized States (Not
permittees covered by general permits, but general permits)	497 	PCS or
ICIS Query: General Permits (not permittees)

 	 	 

Total Number of Phase I MS4s Permittees (Issued by States)	758 
Stormwater Rulemaking MS4 Analysis - EPA

Total Number of Phase I MS4s Permittees (Issued by EPA)	12 	MS4 Program
Implementation - Status of Permit Issuance 

Total Number of Phase I MS4s Permits (Issued by States)	171 	Stormwater
Rulemaking MS4 Analysis - EPA

Total Number of Phase I MS4s Permits (Issued by EPA)	5 	MS4 Program
Implementation - Status of Permit Issuance

 	 	 

Annual Number of New Permits-Major	89 	PCS or ICIS Query: New Standard
(individual) NPDES in the previous 3 years

Annual Number of New Permits-Minor	1,518 	PCS or ICIS Query: New
Standard (individual) NPDES in the previous 3 years

Annual Number of New State Issued Permits-General	15 	PCS or ICIS Query:
New general permits (not permittees) in the previous 3 years

 	 	 

Total Number of Existing POTWs  ≽1.0 mgd	3,958 	PCS or ICIS Query: SIC
4952 POTW

Total Number of Existing POTWs  0.1 - 1.0 mgd	5,354 	PCS or ICIS Query:
SIC 4952 POTW

Total Number of Existing POTWs  ≺0.1 mgd	3,020 	PCS or ICIS Query: SIC
4952 POTW

Total Number of Existing POTWs Unknown Flow	1,353 	PCS or ICIS Query:
SIC 4952 POTW

 	 	 

Total Adjusted Number of Existing POTWs  ≽1.0 mgd	4,391 	PCS or ICIS
Query: SIC 4952; adjusted to account for facilities without flow
information in PCS

Total Adjusted Number of Existing POTWs  0.1 - 1.0 mgd	5,942 	PCS or
ICIS Query: SIC 4952; adjusted to account for facilities without flow
information in PCS

Total Adjusted Number of Existing POTWs  ≺0.1 mgd	3,352 	PCS or ICIS
Query: SIC 4952; adjusted to account for facilities without flow
information in PCS

 	 	 

Total Number of Existing PrOTWs	3,462 	PCS or ICIS Query: SIC 4952 PrOTW

 	 	 

Total Number of Industrial stormwater dischargers covered by a
Multi-Sector General Permit (MSGP)	89,415 	Jack Faulk, personal
communication. Tuesday 5/21/2008 5:57 PM.  Reaffirmed by Brian
Rittenhouse 9/22/2011.

Annual Number of Notice of Termination (NOT) from Industrial stormwater
dischargers under the Multi-Sector General Permit (MSGP)	6,857 	Estimate
from previous ICR.

 	 	 

Annual Number of Municipal Sludge Facilities required under their sewage
sludge permit conditions to submit Permittee Reports of Planned Facility
Changes and Anticipated Noncompliance.	153 	Estimate from previous ICR.

Annual Number of Nonmunicipal Sludge Facilities required under their
sewage sludge permit conditions to submit Permittee Reports of Planned
Facility Changes and Anticipated Noncompliance.	10 	Estimate from
previous ICR.

Annual Number of sludge facilities required to submit Permittee Reports
of Inaccurate Previous Information under sewage sludge use or disposal
conditions	30 	Estimate from previous ICR.

 	 	 

Total Number of Non-Stormwater General Permittees (State-issued)	57,058 
GPCFs September 2011, excluding GM O&G Permit. From Jackie Clark

Total Number of Non-Stormwater General Permittees (EPA-issued)	5,367 
GPCFs September 2011, excluding GM O&G Permit. From Jackie Clark

 	 	 

Uniform Federal Transportation/Utility System Application Form (Alaskan
Lands Application)	3 	Estimate from previous ICR.

MS4 Petition for Individual Permit	24 	Estimate from previous ICR.

Permit Consolidation Request	0 	Estimate from previous ICR was 2.
Changed by Dave Hair.

Notification of Construction Prior to Wastewater Permit Issuance	3 
Estimate from previous ICR.

NPDES Ocean Discharge Information	30 	Estimate from previous ICR.

 	 	 

Total Number of CAFO Permittees	0 	Burden for this activity moved to
Supporting Statement for the Information Collection Request for Animal
Sectors. OMB Control No. 2040-0250, EPA ICR No. 1989.07. May 2010 

Total Number of CAAP Permittees	0 	Burden for this activity moved to
Supporting Statement for the Information Collection Request for Animal
Sectors. OMB Control No. 2040-0250, EPA ICR No. 1989.07. May 2010 

 	 	 

Annual Number of POTWs required to submit compliance schedule reports
regarding sewage sludge permit conditions	100 	Estimate from previous
ICR.

Annual Number of PrOTWs required to submit compliance schedule reports
regarding sewage sludge permit conditions	32 	Estimate from previous
ICR.

Annual Number of POTWs required to submit non-compliance reports
regarding sewage sludge permit conditions	31 	Estimate from previous
ICR.

Annual Number of PrOTWs required to submit non-compliance  reports
regarding sewage sludge permit conditions	10 	Estimate from previous
ICR.

Annual Number of permittees required to respond to Section 308(a)
letters	1,200 	Estimate from previous ICR.

 	 	 

Total Number of Pesticides Packaging and Repackaging facilities with
certification potential	326 	Estimate from previous ICR.

Total Number of Aluminum Forming facilities with certification potential
76 	Estimate from previous ICR.

Total Number of Coil Coating facilities with certification potential	101
	Estimate from previous ICR.

Total Number of Can Making (subcategory of coil coating) facilities with
certification potential	18 	Estimate from previous ICR.

Total Number of Porcelain Enameling* facilities with certification
potential	54 	Estimate from previous ICR.

Total Number of Pharmaceutical Manufacturing facilities with
certification potential	130 	Estimate from previous ICR.

Total Number of Pulp, Paper, and Paperboard facilities with
certification potential	361 	Estimate from previous ICR.

Total Number of Subpart B, Bleached Papergrade Kraft and Soda facilities
with certification potential	74 	Estimate from previous ICR.

Total Number of Building Paper and Board Mills facilities with
certification potential	174 	Estimate from previous ICR.

Total Number of Steam Electric facilities with certification potential
1,372 	Estimate from previous ICR.

Total Number of Electroplating** facilities with certification potential
0 	Estimate from previous ICR.

Total Number of Metal Finishing facilities with certification potential
2,032 	Estimate from previous ICR.

Total Number of Electrical and Electronic Components facilities with
certification potential	86 	Estimate from previous ICR.

 	 	 

Annual Number of Part 435 Certification of Oil and Gas Extraction	68 
Estimate from previous ICR.

 	 	 

Annual Number of sites to be permitted Coal Remining at AML with
pre-existing discharges (AL)	0 	Economic and Environmental Impact
Assessment of Effluent Limitations Guidelines and Standards for the Coal
Mining Industry: Remining and Western Alkaline Subcategories
(EPA-821-B-01-013).

Annual Number of sites to be permitted Coal Remining at AML with
pre-existing discharges (IL)	0 	Economic and Environmental Impact
Assessment of Effluent Limitations Guidelines and Standards for the Coal
Mining Industry: Remining and Western Alkaline Subcategories
(EPA-821-B-01-013).

Annual Number of sites to be permitted Coal Remining at AML with
pre-existing discharges (IN)	5 	Economic and Environmental Impact
Assessment of Effluent Limitations Guidelines and Standards for the Coal
Mining Industry: Remining and Western Alkaline Subcategories
(EPA-821-B-01-013).

Annual Number of sites to be permitted Coal Remining at AML with
pre-existing discharges (KY)	7 	Economic and Environmental Impact
Assessment of Effluent Limitations Guidelines and Standards for the Coal
Mining Industry: Remining and Western Alkaline Subcategories
(EPA-821-B-01-013).

Annual Number of sites to be permitted Coal Remining at AML with
pre-existing discharges (MD)	1 	Economic and Environmental Impact
Assessment of Effluent Limitations Guidelines and Standards for the Coal
Mining Industry: Remining and Western Alkaline Subcategories
(EPA-821-B-01-013).

Annual Number of sites to be permitted Coal Remining at AML with
pre-existing discharges (OH)	21 	Economic and Environmental Impact
Assessment of Effluent Limitations Guidelines and Standards for the Coal
Mining Industry: Remining and Western Alkaline Subcategories
(EPA-821-B-01-013).

Annual Number of sites to be permitted Coal Remining at AML with
pre-existing discharges (PA)	26 	Economic and Environmental Impact
Assessment of Effluent Limitations Guidelines and Standards for the Coal
Mining Industry: Remining and Western Alkaline Subcategories
(EPA-821-B-01-013).

Annual Number of sites to be permitted Coal Remining at AML with
pre-existing discharges (TN)	9 	Economic and Environmental Impact
Assessment of Effluent Limitations Guidelines and Standards for the Coal
Mining Industry: Remining and Western Alkaline Subcategories
(EPA-821-B-01-013).

Annual Number of sites to be permitted Coal Remining at AML with
pre-existing discharges (VA)	9 	Economic and Environmental Impact
Assessment of Effluent Limitations Guidelines and Standards for the Coal
Mining Industry: Remining and Western Alkaline Subcategories
(EPA-821-B-01-013).

Annual Number of sites to be permitted Coal Remining at AML with
pre-existing discharges (WV)	0 	Economic and Environmental Impact
Assessment of Effluent Limitations Guidelines and Standards for the Coal
Mining Industry: Remining and Western Alkaline Subcategories
(EPA-821-B-01-013).

Total Number of Western Alkaline Coal Mining with Sediment Control	46 
Need to get from EPA. Original Source: 1998 Keystone Coal Industry
Manual (as cited in EPA ICR No. 1944.03). These mines are in AZ, CO, MT,
NM, ND, UT and WY. All except NM have NPDES authorization.

 	 	 

Total number of Subpart B, Bleached Papergrade Kraft and Soda Enrolled
in Milestone Plans	29 	EPA ICR No. 1877.03

Total Number of Subpart B, Bleached Papergrade Kraft and Soda
anticipated to Enrolled in Milestone Plans (Tier One Mills)	0 	Estimate
from previous ICR.

Total Number of Subpart B, Bleached Papergrade Kraft and Soda
anticipated to Enrolled in Milestone Plans (Tier Two Mills)	0 	Estimate
from previous ICR.

Total Number of Subpart B, Bleached Papergrade Kraft and Soda
anticipated to Enrolled in Milestone Plans (Tier Three Mills)	0 
Estimate from previous ICR.

 	 	 

Total Number of Subpart B Bleached Papergrade Kraft & Soda, Direct
Discharging facilities	75 	Estimate from previous ICR.

Total Number of Subpart E Ca / Sodium / Mg Sulfite, Direct Discharging
facilities	5 	Estimate from previous ICR.

Total Number of Subpart E Ammonium Sulfite, Direct Discharging
facilities	2 	Estimate from previous ICR.

Total Number of Subpart E Specialty Grade, Direct Discharging facilities
2 	Estimate from previous ICR.

 	 	 

Total number of Minor (Municipal) Dischargers not required to report
1,719 	PCS or ICIS Query: STANDARD (municipal and nonmunicipal) minor
reporting frequency

Total number of Minor (nonmunicipal) Dischargers not required to report
10,751 	PCS or ICIS Query: STANDARD (municipal and nonmunicipal) minor
reporting frequency

Total number of Minor (Municipal) Dischargers that report Monthly	6,569 
PCS or ICIS Query: STANDARD (municipal and nonmunicipal) minor reporting
frequency

Total number of Minor (nonmunicipal) Dischargers that report Monthly
11,996 	PCS or ICIS Query: STANDARD (municipal and nonmunicipal) minor
reporting frequency

Total number of Minor (Municipal) Dischargers that report Bimonthly	32 
PCS or ICIS Query: STANDARD (municipal and nonmunicipal) minor reporting
frequency

Total number of Minor (nonmunicipal) Dischargers that report Bimonthly
119 	PCS or ICIS Query: STANDARD (municipal and nonmunicipal) minor
reporting frequency

Total number of Minor (Municipal) Dischargers that report Quarterly	940 
PCS or ICIS Query: STANDARD (municipal and nonmunicipal) minor reporting
frequency

Total number of Minor (nonmunicipal) Dischargers that report Quarterly
3,843 	PCS or ICIS Query: STANDARD (municipal and nonmunicipal) minor
reporting frequency

Total number of Minor (Municipal) Dischargers that report Semi-Annually
9 	PCS or ICIS Query: STANDARD (municipal and nonmunicipal) minor
reporting frequency

Total number of Minor (nonmunicipal) Dischargers that report
Semi-Annually	219 	PCS or ICIS Query: STANDARD (municipal and
nonmunicipal) minor reporting frequency

Total number of Minor (Municipal) Dischargers that report Annually	202 
PCS or ICIS Query: STANDARD (municipal and nonmunicipal) minor reporting
frequency

Total number of Minor (nonmunicipal) Dischargers that report Annually
1,205 	PCS or ICIS Query: STANDARD (municipal and nonmunicipal) minor
reporting frequency

 	 	 

Percent of Non-stormwater General Permittees not required to report
72.6%	PCS or ICIS Query: General Permits (non-stormwater) reporting
frequency

Percent of Non-stormwater General Permittees that report Monthly	7.8%
PCS or ICIS Query: General Permits (non-stormwater) reporting frequency

Percent of Non-stormwater General Permittees that report Bimonthly	0.4%
PCS or ICIS Query: General Permits (non-stormwater) reporting frequency

Percent of Non-stormwater General Permittees that report Quarterly	9.3%
PCS or ICIS Query: General Permits (non-stormwater) reporting frequency

Percent of Non-stormwater General Permittees that report Semi-Annually
6.4%	PCS or ICIS Query: General Permits (non-stormwater) reporting
frequency

Percent of Non-stormwater General Permittees that report Annually	3.6%
PCS or ICIS Query: General Permits (non-stormwater) reporting frequency

 	 	 

Total Number of Domestic Septage Haulers	4,784 	Estimate from previous
ICR.

 	 	 

Sludge Only, Class I Mgmt Facilities (Municipal Biosolids)	113 	PCS or
ICIS Query: Sludge Only Municipal by Sludge Type

Sludge Only, Non-Class I Mgmt Facilities  (Municipal Biosolids)	1 	PCS
or ICIS Query: Sludge Only Municipal by Sludge Type

Sludge Only, Unknown Class Mgmt Facilities  (Municipal Biosolids)	840 
PCS or ICIS Query: Sludge Only Municipal by Sludge Type

Sludge Only, Class I Mgmt Facilities (Industrial)	73 	PCS or ICIS Query:
Sludge Only Nonmunicipal by Sludge Type

Sludge Only, Non-Class I Mgmt Facilities (Industrial)	39 	PCS or ICIS
Query: Sludge Only Nonmunicipal by Sludge Type

Sludge Only, Unknown Class Mgmt Facilities  (Industrial Biosolids)	217 
PCS or ICIS Query: Sludge Only Nonmunicipal by Sludge Type

Sludge / NPDES POTWs, Class I Sludge Mgmt Facilities	989 	PCS or ICIS
Query: SIC 4952 (POTW) by sludge type

Sludge / NPDES POTWs, Non-Class I Sludge Mgmt Facilities	1,070 	PCS or
ICIS Query: SIC 4952 (POTW) by sludge type

Sludge / NPDES POTWs,  Unknown Class Sludge Mgmt Facilities	11,626 	PCS
or ICIS Query: SIC 4952 (POTW) by sludge type

Sludge / NPDES PrOTWs, Class I Sludge Mgmt Facilities	113 	PCS or ICIS
Query: SIC 4952 (PrOTW) by sludge type

Sludge / NPDES PrOTWs, Non-Class I Sludge Mgmt Facilities	73 	PCS or
ICIS Query: SIC 4952 (PrOTW) by sludge type

Sludge / NPDES PrOTWs,  Unknown Class Sludge Mgmt Facilities	3,276 	PCS
or ICIS Query: SIC 4952 (PrOTW) by sludge type

 	 	 

Total number of Major Municipal facilities in the Great Lakes Watershed
269 	PCS or ICIS Great Lakes Queries

Total number of Major Nonmunicipal facilities in the Great Lakes
Watershed	190 	PCS or ICIS Great Lakes Queries

Total number of Minor Municipal facilities in the Great Lakes Watershed
796 	PCS or ICIS Great Lakes Queries

Total number of Minor Nonmunicipal facilities in the Great Lakes
Watershed	1,068 	PCS or ICIS Great Lakes Queries

Additional facilities that will require WQBEL monitoring under the Great
Lakes Program	176 	Assessment of Compliance Costs Resulting from
Implementation of the Final Great Lakes Water Quality Guidance (March
13, 1995)

Municipal facilities required to develop approvable control strategies
(Pollutant Minimization Programs) under the Great Lakes Program	20 	EPA
estimate

Municipal facilities required to Implement control strategies (Pollutant
Minimization Programs) under the Great Lakes Program	170 	EPA estimate

Nonmunicipal facilities required to develop approvable control
strategies (Pollutant Minimization Programs) under the Great Lakes
Program	40 	EPA estimate

Nonmunicipal facilities required to implement approvable control
strategies (Pollutant Minimization Programs) under the Great Lakes
Program	250 	EPA estimate

Annual modification and variance request under the Great Lakes Program
18 	Assessment of Compliance Costs Resulting from Implementation of the
Final Great Lakes Water Quality Guidance (March 13, 1995)

 	 	 

Total number of Municipalities with Combined Sewer Systems	746	Personal
communication, Mohammed Billah 10/17/2011

Total number of CSO Permits	853 	Personal communication, Mohammed Billah
10/17/2011, 11/30/11

CSO permits with LTCP Permit Requirements	734 	Personal communication,
Mohammed Billah 10/17/2011, 11/30/11

Municipalities that will submit NMC documentation in the next 3 years -
Small	0	Personal communication, Mohammed Billah 10/17/2011, 11/30/11

Municipalities that will submit NMC documentation in the next 3 years -
Medium	0	Personal communication, Mohammed Billah 10/17/2011, 11/30/11

Municipalities that will submit NMC documentation in the next 3 years -
Large	0	Personal communication, Mohammed Billah 10/17/2011, 11/30/11

Percentage of Municipalities that Choose Public Notification - Option 1
(Signs at outfalls)	43%	Previous CSO Control Policy ICR (OMB No.
2040-0170; EPA ICR No. 1680.04)

Percentage of Municipalities that Choose Public Notification - Option 2
(Signs at beaches, other public exposure areas)	43%	Previous CSO Control
Policy ICR (OMB No. 2040-0170; EPA ICR No. 1680.04)

Percentage of Municipalities that Choose Public Notification - Option 3
(Press or radio advisories)	30%	Previous CSO Control Policy ICR (OMB No.
2040-0170; EPA ICR No. 1680.04)

Small Permittees Writing LTCP that have existing studies	8	6.6% of CSO
permits that will submit LTCP (OMB No. 2040-0170; EPA ICR No. 1680.04)

Medium Permittees Writing LTCP that have existing studies	16	13.1% of
CSO permits that will submit LTCP (OMB No. 2040-0170; EPA ICR No.
1680.04)

Large Permittees Writing LTCP that have existing studies	5	4.3% of CSO
permits that will submit LTCP (OMB No. 2040-0170; EPA ICR No. 1680.04)

Small Permittees Writing LTCP that do not have existing studies	71	59.3%
of CSO permits that will submit LTCP (OMB No. 2040-0170; EPA ICR No.
1680.04)

Medium Permittees Writing LTCP that do not have existing studies	15
12.8% of CSO permits that will submit LTCP (OMB No. 2040-0170; EPA ICR
No. 1680.04)

Large Permittees Writing LTCP that do not have existing studies	5	3.9%
of CSO permits that will submit LTCP (OMB No. 2040-0170; EPA ICR No.
1680.04)



Table A2. Unique Respondents

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Total Number of Non-Stormwater General Permittees	57,058 



	Total Number of Domestic Septage Haulers	4,784 



	Total number of Municipalities with Combined Sewer Systems	746



	Total number of Vessels	71,030



	Total non-state respondents	397,703 



	Authorized States	47

States. Tribes, territories and DC	637 *

* 590 of these 637 states respond to only one information item
(certification of EPA-issued permits) [C40]



A-  PAGE  11 

