This collection of information is approved by OMB under the Paperwork Reduction Act, 44 U.S.C. 3501 et seq. (OMB Control No. 2050-0217). Responses to this collection of information are voluntary. 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 this collection of information is estimated to average 30 minutes per response. Send comments on the Agency's need this formation, the accuracy of the provided burden estimates and any suggested methods for minimizing respondent burden including through the use of automated collection techniques to the Director, Regulatory Support Division, 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.
                                       
*Please Note:  This is a complete list of the questions found in this survey.  Depending on how the respondent answers the subsequent questions asked will vary.

            Data Tracking Form for Stand-Alone Anaerobic Digesters

Project/Facility Information
 Please provide the following information about your Project/Facility.
Project/Facility Name
Street address
City/Town
State
Zip code
Phone Number

 Please provide the following information for the contact person for facility operations
Name
Title
Email Address
Phone number

 Please provide the contact address (if different from Facility Address)
Street address
City/Town
State
Zip code

 If you do not wish to have your facility's general information (facility name, city, state, facility type and operational status) included in future EPA reports, please check the box below
         ☐Please do not include the information above in future publications summarizing the data collected via this survey.

Type of Stand-Alone digester
 Which of the following choices best describes your facility?
         ☐ Multi-source Food Digester
         ☐ Industry dedicated digester
         ☐ Other
         
Facility operating status
 Please identify the status of your facility
         ☐ Planning stage/ Design stage/Permitting process 
         ☐ Under construction
         ☐ Operational
         ☐ Temporary shut-down
         ☐ Ceased operation
         ☐ Other

 What is the targeted date for your facility to be operational?

 What date did your facility become operational?

 What date did your facility temporarily shut-down?

 What is the targeted date for your facility to re-start operations?

 What date did your facility cease operations?

 Please state the reason your facility ceased operations.

Facility Total Capacity
 Please provide the total capacity for accepting food-based feedstock of your facility in the units identified.
         [Type in number here]     Choose an item.

 During the year 20XX, how many months was your facility operational?

Processed Waste
 Does your facility accept and process food-based feedstocks?
 Yes
 No

 Please describe the total amount of food-based feedstock accepted by your facility in 20XX. Do this by typing in the amount of food waste, and selecting the units, feedstock type, and feedstock source.
         [Type in number here]     Choose an item.  of   Choose an item.   from    Choose an item.

 Does your facility accept and process non-food-based feedstocks?
 Yes
 No

 Please describe the total amount of non-food-based feedstock accepted by your facility in 20XX. Do this by typing in the amount of non-food waste, and selecting the units, feedstock type, and feedstock source.
         [Type in number here]     Choose an item.  of   Choose an item.   from    Choose an item.
            
 Do you collect tipping fees?
 Yes
 No

 Are you willing to share information about the tipping fees you collect?
 Yes
 No

 How much revenue did your facility collect in tipping fees in 20XX?

 If you would like to provide any other relevant or important information related to tipping fees, please do so below.

Pre-processing/operations
 Are pre-processing or de-packaging activities conducted on your feedstocks before they are added to your digester?
             Offsite
             Onsite (at your facility)
             Both
             None of the above
         
 Please identify the pre-packaging or de-packaging activities that are conducted at your facility. Check all that apply.
         ☐Manual or mechanized de-packaging
         ☐Screening for debris or sorting
         ☐Grinding and/or maceration
         ☐Third party processing
         ☐Shredding
         ☐Heating
         ☐pH adjustment
         ☐Centrifugal separation
         ☐Liquid/solid separation
         ☐Other (please specify)
      
  Please identify the operating temperature range for your digester.
             Mesophilic
             Thermophilic
             Unheated/Ambient
         
  Please indicate if your digester is "wet" or "dry."
             Wet, low-solids system, less than 15% (by volume) solids content.
             Dry, high-solids system, greater than 15% (by volume) solids content.
         
 Please identify the design that best fits your design type/configuration:
             Continuously Stirred Tank Reactor (CSTR)
             Plug-flow
             Covered Lagoon
             Fixed film
             Suspended Media
             Percolating Bed
             Upflow Anaerobic Sludge Blanket (UASB)
             Anaerobic Sequencing Batch Reactor (ASBR)
             Membrane Bioreactor (MBR)
             Hybrid/Multi-stage
             Other (please specify)
         
Product End-Uses
 Please provide the average biogas production volume at your facility during calendar year 20XX in one of the units identified below. 
         [Type in number here] Choose an item.
            
 Is the biogas produced at this facility?
         ☐Used onsite
         ☐Sold
         ☐Flared
         ☐Other (please specify)

 Please identify how the biogas produced at this facility is used. It could be used onsite by the facility or offsite by a purchaser. Check all that apply.
         ☐Produce mechanical power 
         ☐Produce heat and electricity (CHP) 
         ☐Produce electricity (including net metering) 
         ☐Produce electricity (sold to grid) 
         ☐Fuel boilers and furnaces to heat digesters 
         ☐Fuel boilers and furnaces to heat other spaces 
         ☐Compressed to vehicle fuels: used for company fleet/personal vehicles 
         ☐Compressed to vehicle fuels: sold to customers 
         ☐Renewable natural gas (processed in order to inject to pipeline) 
         ☐Other (please specify) 

 Are you able to utilize all of the biogas produced?
 Yes
 No

 Do you flare the excess biogas?
 Yes
 No

 Do you have a gas cleaning system?
 Yes
 No

 What is removed by your gas purification system? Check all that apply.
         ☐Moisture
         ☐Sulfur
         ☐ Siloxanes
         ☐ Carbon Dioxide
         ☐ Compressed Gas
         ☐ Hydrogen sulfide
         ☐ Particulates
         ☐ Oxygen
         ☐ Nitrogen
         ☐ VOCs
         ☐ Other (please specify)

 Do you use the solid digestate you produce in any of the following ways? Check all that apply.
         ☐De-watered/dried and land applied
         ☐ Land applied as is with no dewatering or drying
         ☐ Composted into a reusable or salable product
         ☐ Processed into other salable products (e.g., flower pots)
         ☐ Landfilled
         ☐ Incinerated
         ☐ Other (please specify)

 If any digestate was disposed of in landfills or incinerated in 20XX, please specify the amount in tons or gallons (if known).
         [Type in number here]     Choose an item.

 Is the de-watered/dried digestate further treated prior to land application?
 Yes
 No

 How do you manage the liquid digestate you produce? Check all that apply.
         ☐ Beneficially reused as fertilizer via land application
         ☐ Recirculated through digester
         ☐ Discharged to a wastewater treatment plant
         ☐ Other (please specify)

 Is the liquid digestate further treated prior to land application?
 Yes
 No

 Please indicate what the further treatment is and why it is necessary.

 Do you recover nutrients from your digestate? 
 No
 Yes, phosphorous recovery by chemical precipitation (e.g., struvite)
 Yes, ammonia recovery
 Other (please specify)



