Minnesota Administrative Rules

7017.1090 MONITOR OPERATIONAL REQUIREMENTS.

Subpart 1.

Continuous operation.

A CEMS or COMS must be operated and data recorded during all periods of emission unit operation including periods of emission unit start-up, shutdown, or malfunction. This requirement to operate the monitor applies whether or not a numerical emission limit applies during these periods. A CEMS or COMS must not be bypassed except in emergencies where failure to bypass the CEMS or COMS would endanger human health, safety, or plant equipment.

Subp. 2.

Acceptable monitor downtime.

Monitor downtime is a violation of subpart 1, except for reasonable periods of monitor downtime due to the following causes:

A.

damage to the monitoring system due to acts of God such as lightning strikes, tornadoes, or floods which render the monitor inoperative;

B.

sudden and not reasonably preventable monitor breakdowns;

C.

scheduled monitor maintenance based on equipment manufacturer's recommended maintenance schedule which cannot reasonably be conducted when the emission unit is not operating; or

D.

unavoidable monitor downtime in order to conduct daily drift checks; calibration error audits, relative accuracy test audits, linearity checks, and cylinder gas audits which are required by a compliance document, applicable requirement, or by request of the commissioner.

Statutory Authority:

MS s 116.07

History:

23 SR 1764

Published Electronically:

November 29, 2007