DAR File No. 42115

Environmental Quality, Air Quality

Rule R307-510

Oil and Gas Industry: Natural Gas Engine Requirements

Notice of Proposed Rule

(New Rule)

DAR File No.: 42115
Filed: 09/14/2017 05:00:36 PM

RULE ANALYSIS

Purpose of the rule or reason for the change:

The purpose of this new rule is to implement a permit-by-rule system for oil and gas wells to replace the current minor source permitting system implemented by the Division of Air Quality (Division). This amendment reflects the current Best Available Control Technology (BACT) that is required for gas and oil well facilities that currently apply for a permit to operate. The rule excludes sources that are currently permitted. Therefore, to ensure that the permit-by-rule rules are equivalent to current permitting requirements, this rule was amended to reflect BACT.

Summary of the rule or change:

The rule provides requirements for natural gas-fired engines at oil and gas well sources that do not currently have a permit and were in operation after 01/01/2016.

Statutory or constitutional authorization for this rule:

• Subsection 19-2-104(1)(a)

Anticipated cost or savings to:

the state budget:

This rule does not have a cost or savings to the state budget because this rule regulates oil and gas sources.

local governments:

This rule does not have a cost or savings to local governments because this rule regulates oil and gas sources.

small businesses:

This rule does not have a cost or savings to small businesses, this is because these sites would currently be required to meet similar stack height requirements regardless as to whether this proposed rule was adopted. These requirements would be part of the source's permit.

persons other than small businesses, businesses, or local governmental entities:

No--This rule does not have a cost or savings to "other persons" because the rule impacts owners or operators of oil and gas wells. The owners and operators of these wells are all businesses.

Compliance costs for affected persons:

No additional compliance cost are anticipated as result of this proposed rule. This rule requires certain stack heights for venting emissions from engines. Since the rule only applies to sites that began operations, installed new engines, or made modifications to existing engines after 01/01/2016. No additional compliance cost are expected, because these sites would currently be required to meet similar stack height requirements regardless as to whether this proposed rule was adopted. These requirements would be part of the source's permit.

Comments by the department head on the fiscal impact the rule may have on businesses:

After conducting a thorough analysis, it was determined that this proposed rule will not result in a fiscal impact to businesses in Utah. This rule requires certain stack heights for venting emissions from engines. Since the rule only applies to sites that began operations, installed new engines, or made modifications to existing engines after 01/01/2016, there is no fiscal impact on businesses. This is because these sites would currently be required to meet similar stack height requirements regardless as to whether this proposed rule was adopted. These requirements would be part of the source's permit.

Alan Matheson, Executive Director

The full text of this rule may be inspected, during regular business hours, at the Office of Administrative Rules, or at:

Environmental Quality
Air QualityRoom Fourth Floor
195 N 1950 W
SALT LAKE CITY, UT 84116-3085

Direct questions regarding this rule to:

• Mat Carlile at the above address, by phone at 801-536-4116, by FAX at 801-536-4136, or by Internet E-mail at mcarlile@utah.gov

Interested persons may present their views on this rule by submitting written comments to the address above no later than 5:00 p.m. on:

11/15/2017

Interested persons may attend a public hearing regarding this rule:

• 10/25/2017 01:00 PM, TriCounty Health, 133 S 500 E, Vernal UT
• 10/19/2017 01:00 PM, Department of Environmental Quality, 195 N 1950 W, Board Room 1015, Salt Lake City, UT

This rule may become effective on:

01/04/2018

Authorized by:

Bryce Bird, Director

R307. Environmental Quality, Air Quality.

R307-510. Oil and Gas Industry: Natural Gas Engine Requirements.

R307-510-1. Purpose.

R307-510 establishes requirements for engines associated with oil and gas operations to control emissions nitrogen oxide emissions.

 

R307-510-2. Applicability.

(1) R307-510 applies to each natural gas-fired engine at a well site as defined in 40 CFR 60.5430a, Subpart OOOOa Standards of Performance for Crude Oil and Natural Gas Production, Transmission and Distribution, that began operations, installed new engines, or made modifications to existing engines after January 1, 2016.

(a) R307-510 does not apply to a natural gas-fired engine that is subject to an approval order issued under R307-401-8.

 

R307-510-3. Engine Requirements.

(1) Regardless of construction, reconstruction, or modification date, each stationary engine at a well site shall comply with 40 CFR Subpart JJJJ when the engine is installed or modified.

(2) Each engine shall vent exhaust gases vertically unrestricted with the following stack height requirements:

(i) Site hp ratings of 306 or higher shall vent exhaust vertically unrestricted with an attached stack height of no less than 10 feet.

(ii) Site hp ratings of 151 to 305 horsepower shall vent exhaust vertically unrestricted with an attached stack height of no less than 8 feet.

(iii) Site hp ratings of 150 horsepower or less have no stack height requirements.

 

R307-510-4. Recordkeeping.

The owner/operator shall maintain documentation demonstrating that each stationary engine on-site meets the requirements contained in R307-510-3.

 

KEY: air pollution, oil, gas

Date of Enactment or Last Substantive Amendment: 2017

Authorizing, and Implemented or Interpreted Law: 19-2-104(1)(a)