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Test Methods: Three New Methods for Velocity and Volumetric Flow Rate Determination in Stacks or Ducts

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[Federal Register: May 14, 1999 (Volume 64, Number 93)]
[Proposed Rules]               
[Page 26570]
From the Federal Register Online via GPO Access [wais.access.gpo.gov]
[DOCID:fr14my99-30]



[[Page 26570]]



ENVIRONMENTAL PROTECTION AGENCY

40 CFR Part 60

[FRL-6337-2]
RIN 2060-AH97

 
Test Methods: Three New Methods for Velocity and Volumetric Flow 
Rate Determination in Stacks or Ducts

AGENCY: Environmental Protection Agency (EPA).

ACTION: Proposed rule.

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SUMMARY: EPA is proposing three new optional test methods for measuring 
velocity and volumetric flow rate of flue gas from fossil fuel-fired 
boilers and turbines. These new methods can account for velocity drop-
off near the stack or duct wall and the yaw and pitch angles of flow. 
Owners and operators of utility units subject to the Acid Rain Program 
under title IV of the Clean Air Act and certain large electric 
generating units and large non-electric generating units that may 
become subject to the nitrogen oxides (NOX) state 
implementation plan (SIP) call under Title I of the Clean Air Act must 
use an approved test method to periodically calibrate the flow rate 
monitors at these units. Flow rate data is used to determine the units' 
sulfur dioxide (SO<INF>2</INF>) and NOX mass emissions and 
heat inputs. The purpose of the Acid Rain Program and the 
NOX SIP call is to significantly reduce emissions from 
electric generating plants and other affected units in order to reduce 
the adverse health and environmental effects of acid deposition or 
ground level ozone resulting from these emissions.

DATES: Written comments must be received by June 14, 1999 unless a 
hearing is held, in which case written comments must be received by 
July 1, 1999.
    Public Hearing: Anyone requesting a public hearing must submit a 
written request, which must be received by EPA by no later than May 21, 
1999. If a hearing is timely requested, it will be held on June 1, 
1999, starting at 10:00 a.m.

ADDRESSES: Any written comments must be identified as comments on the 
direct final rule and companion proposed rule, identified with Docket 
No. A-99-14, and must be submitted in duplicate to: EPA Air Docket 
(6102), Environmental Protection Agency, 401 M Street, SW, Washington, 
DC 20460. The docket is available for public inspection and copying 
between 8:30 a.m. and 3:30 p.m., Monday through Friday, at the address 
given above. EPA may charge a reasonable fee for copying.
    Public Hearing: If a hearing is held, it will take place at the 4th 
floor conference room at 501 3rd Street, NW, Washington, DC 20001.

FOR FURTHER INFORMATION CONTACT: John Schakenbach, Acid Rain Division 
(6204J), U.S. Environmental Protection Agency, 401 M Street, SW, 
Washington, DC 20460, (202) 564-9158; or Elliot Lieberman, Acid Rain 
Division (6204J), U.S. Environmental Protection Agency, 401 M Street, 
SW, Washington, DC 20460, (202) 564-9136.

SUPPLEMENTARY INFORMATION: We are proposing to add three new optional 
test methods for determination of velocity and volumetric flow rate in 
stacks or ducts that account for yaw and pitch angles of stack or duct 
gas flow and velocity drop-off near the stack or duct wall. We are 
promulgating the new test methods as a direct final rule without prior 
proposal because we view the rule as noncontroversial and anticipate no 
adverse comment. We have explained our reasons for this action in the 
preamble to the direct final rule. If we receive no timely adverse 
comment, we will not take further action on this proposed rule. If we 
receive timely adverse comment, we will withdraw the direct final rule 
and it will not take effect.
    We will address all public comments in a subsequent final rule 
based on this proposed rule. We will not institute a second comment 
period on this action. Any parties interested in commenting must do so 
at this time. For further information, please see the information 
provided in the direct final action that is located in the ``Rules and 
Regulations'' section of this Federal Register publication.

    Dated: May 5, 1999.
Carol M. Browner,
Administrator.
[FR Doc. 99-11797 Filed 5-13-99; 8:45 am]
BILLING CODE 6560-50-P

 
 

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