Draft Permits Available for Comment

The deadline for comments on the following documents has been extended to May 25, 2016.

Proposed General Permits for Natural Gas Compressor Stations and Similar Facilities

DAPC is issuing a package of general permits that have been designed around a typical natural gas compressor station within the gathering network leading up to the larger stations in the interstate transmission network. Compressor stations are used by the natural gas industry to pump the gas through the pipeline. In some cases, they also have equipment that removes natural gas liquids and water from the gas before it is pumped. The draft general permits we are sending out include the typical equipment found at a natural gas compressor station including the following:

  • Natural gas fired spark ignition compressor engines (five lean burn size choices, five rich burn choices)
  • Diesel engines (two size choices)
  • Dehydrators (two sizes)
  • Flares (one open flare or two enclosed flare choices)
  • Compressors
  • Equipment (pipes, valves, flanges, pumps, etc.) that has the potential to leak
  • Liquid storage tank
  • Truck loading operations
  • Pigging operation

We have made a number of changes and additions to the permits based on comments received from the first drafts that were issued in 2015. A version with changes tracked is available for each under the “Changes” column below. Refer to the response to comments document for more information. 

We are asking any interested party to review the draft general permits and the supporting materials and provide us with comments concerning the material. Comments are due May 25, 2016 and should be submitted to: Dana Thompson at dana.thompson@epa.ohio.gov.

It is recommended that interested parties first read the attached letter describing our proposal and provides answers to common questions. Next, go to the table below and click on each link to obtain a copy of the documents that need your review. Note that for each proposed general permit you will find a Qualifying Criteria (QC) document and a Model General Permit (MGP) document. The QC document is intended to restrict applicability for the general permit to only those sources for which the general permit was designed. The MGP document describes all of the terms and conditions a recipient of the general permit would receive if approval was granted. Please review both of these documents (for each general permit) and provide your comments and suggestions.

In addition to reviewing the QC and MGP documents, we are also asking you to review the attached "Additional General Permit Guidance for Natural Gas Compressor Stations" document. This document will be used by new or modified natural gas compressor station applicants to help determine if they qualify for the general permits and to determine if computer modeling must be done. We also would like interested parties to review the worksheet to calculate fugitive emissions here: EmissionsEstimationWorksheet.doc

The below table identifies each of the QC and MGP documents associated with this proposal.

If you have any questions about this proposal, please contact Mike Hopkins at (614) 644-3611 or mike.hopkins@epa.ohio.gov.

Natural Gas Compressor Facility/Other Facility General Permits
Category
GP# QC Doc MGP Doc Changes Description Size Range
Compressor Engines
14.1 QC14.1 GP14.1 GP14.1 Redline Lean burn natural gas fired spark ignition engine ≥100 to ≤300 BHP
14.2 QC14.2 GP14.2 GP14.2 Redline Lean burn natural gas fired spark ignition engine >300 to ≤500 BHP
14.3 QC14.3 GP14.3 GP14.3 Redline Lean burn natural gas fired spark ignition engine >500 to ≤1000 BHP
14.4 QC14.4 GP14.4 GP14.4 Redline Lean burn natural gas fired spark ignition engine >1000 to ≤1350 BHP
14.5 QC14.5 GP14.5 (GP14.5 is new) Lean burn natural gas fired spark ignition engine >1350 to ≤3600 BHP
14.6 QC14.6 GP14.6 GP14.6 Redline Rich burn natural gas fired spark ignition engine ≥100 to ≤300 BHP
14.7 QC14.7 GP14.7 GP14.7 Redline Rich burn natural gas fired spark ignition engine >300 to ≤500 BHP
14.8 QC14.8 GP14.8 GP14.8 Redline Rich burn natural gas fired spark ignition engine >500 to ≤1000 BHP
14.9 QC14.9 GP14.9 GP14.9 Redline Rich burn natural gas fired spark ignition engine >1000 to ≤1350 BHP
14.10 QC14.10 GP14.10 GP14.10 Redline Rich burn natural gas fired spark ignition engine >1350 to ≤3600 BHP
Diesel Fired Engines
9.13 QC9.13 GP9.13 GP9.13 Redline Portable diesel-fired compression ignition internal combustion engine ≥175 to ≤350 BHP
9.14 QC9.14 GP9.14 GP9.14 Redline Portable diesel-fired compression ignition internal combustion engine >350 to ≤750 BHP
Dehydrators
15.1 QC15.1 GP15.1 GP15.1 Redline Glycol dehydrator ≤90 MMscfd
15.2 QC15.2 GP15.2 (GP15.2 is new) Glycol dehydrator >90 MMscfd & <150 MMscfd
Flare
16.1 QC16.1 GP16.1 GP16.1 Redline Open flare ≤1 MMBtu/hr
16.2 QC16.2 GP16.2 GP16.2 Redline Enclosed flare ≤10 MMBtu/hr
16.3 QC16.3 GP16.3 GP16.3 Redline Enclosed flare >10 to ≤20 MMBtu/hr
Centrifugal or Reciprocating Compressor
17.1 QC17.1 GP17.1 GP17.1 Redline Centrifugal or reciprocating natural gas compressor including compressor blowdowns and seal, vent, and isolation valve leakage ≤3600 driving BHP
Equipment/Pipeline Leaks
18.1 QC18.1 GP18.1 GP18.1 Redline Equipment leaks from valves, flanges, pressure relief devices, open end valves or lines, pump seals, compressor (except natural gas compressor) seals in natural gas service up to 10 TPY VOC
Flash/Storage Vessel
19.1 QC19.1 GP19.1 GP19.1 Redline Flash Vessel/Storage Vessel for condensate, produced water, crude oil, and/or petroleum liquids ≤500 bbl (21,000 gal)
Truck Loading
20.1 QC20.1 GP20.1 GP20.1 Redline Truck Loading of condensate, produced water, crude oil and petroleum liquids ≤32,000,000 gal/yr
Pigging
21.1 QC21.1 GP21.1 GP21.1 Redline Pigging up to 3.24 TPY VOC
           

 

link back to general permits pageSelect another model general permit