NPDES Permitting Program: Concentrated Animal Feeding Operations and Concentrated Aquatic Animal Production Facilities, Applicat

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United States
Environmental Protection Agency

Water Permits Division

Office of Water
Washington, D.C.

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EPA Form 3510-2B
Revised 07/31/2023
OMB No. 2040-0004

MM/DD/YYYY

Application Form 2B

Concentrated Animal Feeding
Operations and Concentrated
Aquatic Animal Production
Facilities
NPDES Permitting Program

Note: Complete this form and Form 1 if your facility is a new or existing concentrated animal feeding
operation or concentrated aquatic animal production facility.

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Responses to this collection of information are mandatory (40 CFR 122.21). An agency may not
conduct or sponsor, and a person is not required to respond to, a collection of information unless it
displays a currently valid OMB control number. The public reporting and recordkeeping burden for
Form 2B is estimated to be 8.5 hours for concentrated animal feeding operation respondents and 6
hours for concentrated aquatic animal production respondents. These estimates include time for
reviewing instructions, searching existing data sources, gathering and maintaining the needed data,
and completing and reviewing the collection of information. Send comments on the Agency’s need
for this information, the accuracy of the provided burden estimates and any suggested methods for
minimizing respondent burden to the Regulatory Support Division Director, U.S. Environmental
Protection Agency (2821T), 1200 Pennsylvania Ave., NW, Washington, D.C. 20460. Include the
OMB control number in any correspondence. Do not send the completed form to this address.

FORM 2B—INSTRUCTIONS
Line-by-Line Instructions
EPA Identification Number, NPDES Permit Number, and
Facility Name
Provide your EPA Identification Number from the Facility
Registry Service, NPDES permit number, and facility name at
the top of each page of Form 2B and any attachments. If your
facility is new (i.e., not yet constructed), write or type “New
Facility” in the space provided for the EPA Identification Number
and NPDES permit number. If you do not know your EPA
Identification Number, contact your NPDES permitting authority.
See Exhibit 1–1 of the “General Instructions” of Form 1 for
contact information.

General Instructions
Who Must Complete Form 2B?
You must complete Form 2B if you answered “Yes” to Item 1.2.1
on Form 1—that is, if you are a concentrated animal feeding
operation (CAFO) or a concentrated aquatic animal production
(CAAP) facility.
Where to File Your Completed Form
Submit your completed application package (Forms 1 and 2B) to
your National Pollutant Discharge Elimination System (NPDES)
permitting authority. Consult Exhibit 1–1 of Form 1’s “General
Instructions” to identify your NPDES permitting authority.
Public Availability of Submitted Information
The U.S. Environmental Protection Agency (EPA) will make
information from NPDES permit application forms available to
the public for inspection and copying upon request. You may not
claim any information on Form 2B (or related attachments) as
confidential.

Section 1. General Information
Item 1.1. Mark whether your facility/business type is a CAFO or
a CAAP.

You may make a claim of confidentiality for any information that
you submit to EPA that goes beyond the information required by
Form 2B. Note that NPDES authorities will deny claims for
treating any effluent data as confidential. If you do not assert a
claim of confidentiality at the time you submit your information to
the NPDES permitting authority, EPA may make the information
available to the public without further notice to you. EPA will
handle claims of confidentiality in accordance with its business
confidentiality regulations at Part 2 of Title 40 of the Code of
Federal Regulations (CFR).

•

For a CAFO, you must complete Sections 1 through 6 and
Section 8.

•

For a CAAP, you must complete Sections 1, 7, and 8.

Item 1.2. Indicate whether your facility is an existing or
proposed facility. Mark “Proposed Facility” if your facility is
presently not in operation or is expanding to meet the definition
of a CAFO in accordance with the regulations at 40 CFR
122.23.
Section 2. CAFO Owner/Operator Contact Information
Item 2.1. Provide the name, title, telephone number, and email
address of the owner/operator of the facility/business.
Item 2.2. Provide the complete mailing address of the
owner/operator of the facility/business.

Completion of Forms
Print or type in the specified areas only. If you do not have
enough space on the form to answer a question, you may
continue on additional sheets, as necessary, using a format
consistent with the form.

Section 3. CAFO Location and Contact Information
Item 3.1. Provide the legal name and location (complete mailing
address) of the facility. Also indicate whom the NPDES
permitting authority should contact about the application,
including a telephone number and email address.

Do not leave any response areas blank unless the form directs
you to skip them. If the form directs you to respond to an item
that does not apply to your facility or activity, enter “NA” for “not
applicable” to show that you considered the item and
determined a response was not necessary for your facility.

Item 3.2. Provide the latitude and longitude of the entrance to
the production area (i.e., the part of the operation that includes
the animal confinement area, the manure storage area, the raw
materials storage area, and the waste containment areas). The
latitude and longitude may be provided in degrees, minutes,
seconds format (e.g., 38° 53’ 38” N, 77° 1’ 45” W) or decimal
degrees (e.g., 38.893829, -77.029289). Latitude and longitude
coordinates may be obtained in a variety of ways, including use
of hand held devices (e.g., a GPS enabled smartphone),
internet mapping tools, geographic information systems (e.g.,
ArcView), or paper maps from trusted sources (e.g., U.S.
Geological Survey or USGS). For further guidance, refer to
http://www.epa.gov/geospatial/latitudelongitude-data-standard.

The NPDES permitting authority will consider your application
complete when it and any supplementary material are received
and completed according to the authority’s satisfaction. The
NPDES permitting authority will judge the completeness of any
application independently of the status of any other permit
application or permit for the same facility or activity.
Definitions
The legal definitions of all key terms used in these instructions
and Form 2B are in the “Glossary” at the end of the “General
Instructions” in Form 1.

Item 3.3. If the facility uses a contract grower, provide the name
and complete mailing address of the integrator.

2B-1

FORM 2B—INSTRUCTIONS (CONTINUED)
Section 4. CAFO Topographic Map
Item 4.1. Provide a topographic map of the geographic area in
which the facility is located, showing the specific location of the
production area(s). You are not required to provide the
topographic map required by Section 7 of Form 1.

Item 5.9. Specify the tons of manure or litter or the gallons of
process wastewater transferred annually to other people.

On each map, include the map scale, a meridian arrow showing
north, and latitude and longitude to the nearest second or
equivalent decimal degrees (e.g., 38.893829, -77.029289).
Latitude and longitude coordinates may be obtained in a variety
of ways, including use of hand held devices (e.g., a GPS
enabled smartphone), internet mapping tools, geographic
information systems (e.g., ArcView), or paper maps from trusted
sources (e.g., USGS).

Section 6. CAFO Nutrient Management Plans
Item 6.1. Indicate if you have submitted a nutrient management
plan that satisfies the requirements at 40 CFR 122.42(e) and, if
applicable, the requirements at 40 CFR 412.4(c).

Item 5.10. Describe any alternative uses of manure, litter, or
process wastewater, if any (e.g., composting, pelletizing, energy
generation).

Item 6.2. If you have not yet submitted a nutrient management
plan, explain why not.
Item 6.3. Indicate if a nutrient management plan is being
implemented at the CAFO. If not land applying, describe the
alternative uses of the manure, litter, and wastewater (e.g.,
composting, pelletizing, energy generation).

On all maps of rivers, show the direction of the current. In tidal
waters, show the directions of ebb and flow tides.
You may develop your map by going to USGS’s National Map
website at http://nationalmap.gov/. (For a map from this site, use
the traditional 7.5-minute quadrangle format. If none is available,
use a USGS 15-minute series map.) You may also use a plat or
other appropriate map. Briefly describe land uses in the map
area (e.g., residential, commercial.). Note that you have
completed your topographic map and attached it to the
application.

Item 6.4. Indicate the date of the last review or revision of the
nutrient management plan.
Note: A permit application is not complete until a nutrient
management plan is submitted to the NPDES permitting
authority.
Section 7. CAAP Facility Characteristics
Item 7.1. Indicate if the CAAP facility is located on land. If the
facility is located in water (e.g., a net pen or submerged cage
system), check “No” and skip to Item 7.3. If yes, continue to Item
7.2.

Section 5. CAFO Characteristics
Supply all information in Section 5 if you checked “Existing
facility” in response to Item 1.2.
Item 5.1. Provide the maximum number of each type of animal
in open confinement or housed under roof (either partially or
totally) that are held at your facility for a total of 45 days or more
in any 12-month period. Provide the total number of animals
confined at the facility.

Item 7.2. Provide the maximum daily and maximum average
monthly discharge at the CAAP facility by outfall number. Outfall
numbers should correspond with the outfall numbers provided
on the map submitted in Section 7 of Form 1. Values given for
flow should be representative of your normal operation. The
maximum daily flow is the maximum measured flow occurring
over a calendar day. The maximum average monthly flow is the
average of measured daily flow over the calendar month of
highest flow.

Item 5.2. Identify the applicable types of containment and
storage for manure, litter, and process wastewater at the facility
and indicate the capacity of storage in days and gallons or tons.
Item 5.3. Indicate the total number of acres that are drained and
collected in the containment and storage structure(s).

Item 7.3. Indicate the number of ponds, raceways, net pens,
submerged cages, or similar structures at your facility that result
in discharges to waters of the United States. Describe each type
and provide the name of the associated receiving water and
intake water source.

Item 5.4. Specify the tons of manure or litter and the gallons of
process wastewater generated at the facility on an annual basis.
Item 5.5. Indicate whether the manure, litter, and/or process
wastewater is land applied. If yes, continue to Item 5.6. If no,
skip to Item 5.8.

Item 7.4. List the species of fish or aquatic animals held and fed
at your facility. Distinguish between cold-water and warm-water
species. The names of fish species should be proper, common,
or scientific names as given in Special Publication 34 of the
American Fisheries Society, Common and Scientific Names of
Fishes from the United States, Canada, and Mexico.

Item 5.6. Indicate the number of acres of land under the control
of the applicant that are available for land application of the
manure, litter, or process wastewater.
Item 5.7. Check any of the identified best management
practices that are being implemented at the facility to control
runoff and protect water quality.

For each species, provide the total harvestable weight in pounds
(lbs.) for a typical calendar year. Also indicate the maximum
weight present at any one time at your facility.

Item 5.8. Indicate if the manure, litter, and/or process
wastewater is transferred to any other persons. If yes, continue
to Item 5.9. If no, skip to Item 5.10.

Item 7.5. Indicate the maximum monthly pounds of food given at
your facility. Also indicate the month given. The amounts should
be representative of your normal operations.
2B-2

FORM 2B—INSTRUCTIONS (CONTINUED)
Section 8. Checklist and Certification Statement
Item 8.1. Review the checklist provided. In Column 1, mark the
sections of Form 2B that you have completed and are
submitting with your application. For each section in Column 2,
indicate whether you are submitting attachments.

capital investment recommendations, and initiating and
directing other comprehensive measures to assure long
term environmental compliance with environmental laws
and regulations; the manager can ensure that the
necessary systems are established or actions taken to
gather complete and accurate information for permit
application requirements; and where authority to sign
documents has been assigned or delegated to the
manager in accordance with corporate procedures.
B. For a partnership or sole proprietorship, by a general
partner or the proprietor, respectively.
C. For a municipality, state, federal, or other public facility, by
either a principal executive officer or ranking elected
official. For purposes of this section, a principal executive
officer of a federal agency includes: (1) the chief executive
officer of the agency or (2) a senior executive officer having
responsibility for the overall operations of a principal
geographic unit of the agency (e.g., Regional
Administrators of EPA).
END

Item 8.2. The Clean Water Act provides for severe penalties for
submitting false information on this application form. Section
309(c)(2) of the Act states, “Any person who knowingly makes
any false statement, representation, or certification in any
application, …shall upon conviction, be punished by a fine of no
more than $10,000 or by imprisonment for not more than six
months, or both.”
FEDERAL REGULATIONS AT 40 CFR 122.22 REQUIRE THIS
APPLICATION TO BE SIGNED AS FOLLOWS:
A.

For a corporation, by a responsible corporate officer. For
the purpose of this section, a responsible corporate officer
means: (1) a president, secretary, treasurer, or vicepresident of the corporation in charge of a principal
business function, or any other person who performs
similar policy- or decision-making functions for the
corporation, or (2) the manager of one or more
manufacturing, production, or operating facilities, provided
the manager is authorized to make management decisions
which govern the operation of the regulated facility
including having the explicit or implicit duty of making major

Submit your completed Form 1, Form 2B, and
all associated attachments
(and any other required NPDES application forms)
to your NPDES permitting authority.

2B-3

EPA Identification Number

NPDES Permit Number

OMB No. 2040-0004
Expires 07/31/2026

Facility Name

U.S. Environmental Protection Agency
Application for NPDES Permit to Discharge Wastewater

Form
2B
NPDES

General
Information

CONCENTRATED ANIMAL FEEDING OPERATIONS and
CONCENTRATED AQUATIC ANIMAL PRODUCTION FACILITIES
SECTION 1. GENERAL INFORMATION (40 CFR 122.21(I)(1))
1.1
Indicate the facility/business type. (Check only one response.)
 CAFO  Complete Sections 1 through 6 and Section 8.


1.2

CAAP  Complete Sections 1, 7, and 8.

Indicate the operational status of the facility. (Check one.)





Existing facility

Proposed facility

CAFO Owner/Operator
Contact Information

SECTION 2. CAFO OWNER/OPERATOR CONTACT INFORMATION (40 CFR 122.21(F)(2) AND (4) AND 122.21(I)(1)(I))
2.1
Owner/Operator Contact
Name (first and last)
Title
Phone number
2.2

Email address

Owner/Operator Mailing Address
Street or P.O. box
City or town

State

Zip code

CAFO Location and Contact Information

SECTION 3. CAFO LOCATION AND CONTACT INFORMATION (40 CFR 122.21(I)(1)(II AND III))
3.1
CAFO Location and Contact
Name
Address (street, route number, or other specific identifier)

3.2

County

City or town

State

Zip code

Facility contact name

Phone number

Email address

Latitude/Longitude of Entrance to Production Area (see instructions)
Latitude

EPA Form 3510-2B (Revised 7/2023)

Longitude

Page 1

CAFO Location and Contact
Information Continued

EPA Identification Number

3.3

NPDES Permit Number

OMB No. 2040-0004
Expires 07/31/2026

Facility Name

Integrator Name and Address
Name
Street address
City or town

State

Zip code

CAFO
Topographic
Map

SECTION 4. CAFO TOPOGRAPHIC MAP (40 CFR 122.21(I)(1)(IV))
4.1
Have you attached a topographic map containing all required information to this application? (See instructions for
specific requirements.)



Yes

SECTION 5. CAFO CHARACTERISTICS (40 CFR 122.21(I)(1)(V-IX))
5.1
Provide information on the type and number of animals in the table below.

CAFO Characteristics

Animal Type

5.2










Mature dairy
cows

Number
Housed
Under Roof

Animal Type









Dairy heifers
Veal calves
Cattle (not dairy
or veal calves)
Swine
(55 lbs. or more)
Swine
(under 55 lbs.)
Horses

Number in Open
Confinement

Sheep or
lambs
Chickens
(broilers)
Chickens
(layers)

Number
Housed
Under Roof

Ducks
Other
(specify)
Other
(specify)
Other
(specify)

Total Animals

Turkeys

Indicate the type of containment and storage, total number of days, and total capacity for manure, litter, and
process wastewater storage in the table below.
Type of Containment
and Storage

5.3

Number in Open
Confinement

Total Number of
Days

Total
Capacity

(specify gallons
or tons)

Type of
Containment and
Storage



Anaerobic lagoon



Belowground
storage tanks



Evaporation



Roofed
storage shed



Aboveground
storage tanks



Concrete pad



Storage pond



Impervious
soil pad



Underfloor pit



Other
(specify)

Total Number of
Days

Total
Capacity

(specify gallons
or tons)

Indicate the total number of acres drained and collected in the containment and storage structure(s) reported under
Item 5.2.
____________ acres

EPA Form 3510-2B (Revised 7/2023)

Page 2

EPA Identification Number

NPDES Permit Number

Facility Name

OMB No. 2040-0004
Expires 07/31/2026

Manure, Litter, and/or Process Wastewater Production and Use
5.4
How many tons of manure or litter and gallons of process wastewater are generated annually at the CAFO?
Manure

tons

Litter

tons

Process wastewater
5.5

Is manure, litter, and/or process wastewater generated at the CAFO land applied?


CAFO Characteristics Continued

5.6

5.7

5.8
5.9

gallons

Yes



No  SKIP to Item 5.8.

How many acres of land under the control of the applicant are available for applying the CAFO’s manure, litter,
or process wastewater?
______________ acres
Check all land application best management practices that are being implemented.
 Buffers
 Infiltration field





Setbacks



Yes

Conservation tillage





Grass filter



No  SKIP to Item 5.10.

Terrace

Constructed wetlands
Other (specify)
Is manure, litter, and/or process wastewater transferred to any other persons?
How many tons of manure or litter and gallons of process wastewater, produced by the CAFO, are transferred
annually to other people?
Manure

tons

Litter

tons

Process wastewater
5.10

gallons

Describe alternative use(s) of manure, litter, or process wastewater, if any.

CAFO Nutrient Management Plans

SECTION 6. CAFO NUTRIENT MANAGEMENT PLANS (40 CFR 122.21(I)(1)(X))
6.1
Has the applicant attached a nutrient management plan that satisfies the requirements at 40 CFR 122.42(e)
and, if applicable, the requirements at 40 CFR 412.4(c)? Note: A permit application is not complete until a
nutrient management plan is submitted to the NPDES permitting authority.
 Yes  SKIP to Item 6.3.
 No
6.2
Explain why a nutrient management plan is not attached to the application and your estimated date for
submitting the NMP.

6.3
6.4

Is a nutrient management plan being implemented at the CAFO?
 Yes
 No
What was the date of the last review
or revision of the nutrient
Date _________________________________
management plan?

EPA Form 3510-2B (Revised 7/2023)

Page 3

EPA Identification Number

NPDES Permit Number

OMB No. 2040-0004
Expires 07/31/2026

Facility Name

SECTION 7. CAAP FACILITY CHARACTERISTICS (40 CFR 122.21(I)(2))
7.1
Is the CAAP facility located on land?
 Yes
 No  SKIP to Item 7.3.
7.2
Provide the maximum daily and maximum average monthly discharge at CAAP by outfall.
Outfall
Number

7.3

Maximum Daily Discharge

Discharge

Maximum Average Monthly Discharge

gpd

gpd

gpd

gpd

gpd

gpd

Indicate the type and number of discharge structures at the CAAP. Provide a brief description of each structure.
Also note the name of the receiving water and the source of the intake water for each structure.
Structure
Type

Number of Each

Receiving Water
Name

Description

Source of Intake
Water

CAAP Facility Characteristics

Ponds
Raceways
Net pens

Not applicable

Submerged
cages
Similar
structures

7.4

(specify)
_____________

List the cold-water and/or warm-water aquatic species raised/produced in the table below. For each species
listed, indicate the total yearly and maximum harvestable weight (in pounds).
Species

7.5

Not applicable

Cold Water Species
Harvestable Weight
Total Yearly
Maximum

Species

Warm Water Species
Harvestable Weight
Total Yearly
Maximum

lbs.

lbs.

lbs.

lbs.

lbs.

lbs.

lbs.

lbs.

lbs.

lbs.

lbs.

lbs.

lbs.

lbs.

lbs.

lbs.

Indicate the calendar month of maximum feeding and the total mass of food fed (in pounds) during that month.
Month of Maximum Feeding

Total Mass of Food Fed

lbs.

EPA Form 3510-2B (Revised 7/2023)

Page 4

EPA Identification Number

NPDES Permit Number

OMB No. 2040-0004
Expires 07/31/2026

Facility Name

SECTION 8. CHECKLIST AND CERTIFICATION STATEMENT (40 CFR 122.22(A) AND (D))
8.1
In Column 1, below, mark the sections of Form 2B that you have completed and are submitting with your
application. For each section, specify in Column 2 any attachments that you are enclosing to alert the permitting
authority. Note that not all applicants are required to provide attachments.
Column 1
Column 2

 Section 1: General Information

 w/ attachments

 Section 2: CAFO Owner/Operator Contact Information  w/ attachments
 Section 3: CAFO Location and Contact Information

 Section 7: CAAP Facility Characteristics

 w/ attachments
 w/ topographic map
 w/ additional attachments
 w/ attachments
 w/ nutrient management plan
 w/ attachments
 w/ attachments

 Section 8: Checklist and Certification Statement

 w/ attachments

Checklist and Certification Statement

 Section 4: CAFO Topographic Map
 Section 5: CAFO Characteristics
 Section 6: CAFO Nutrient Management Plans

8.2

Provide the following certification. (See instructions to determine the appropriate person to sign the application.)
Certification Statement
I certify under penalty of law that this document and all attachments were prepared under my direction or
supervision in accordance with a system designed to assure that qualified personnel properly gather and
evaluate the information submitted. Based on my inquiry of the person or persons who manage the system, or
those persons directly responsible for gathering the information, the information submitted is, to the best of my
knowledge and belief, true, accurate, and complete. I am aware that there are significant penalties for submitting
false information, including the possibility of fine and imprisonment for knowing violations.
Name (print or type first and last name)
Official title

Signature

Date signed

Click to go back to the beginning of Form

EPA Form 3510-2B (Revised 7/2023)

Page 5