MH - Monitor Obstruction¶
The type of obstruction for a monitor with restricted air flow is described by using the MH transaction.
Rules¶
A Monitor Obstruction record may not be created if the unrestricted air flow indicator for the monitor (State Code, County Code, Site ID, Parameter, POC) is “Y”.
A Monitor Obstruction record is required if the unrestricted air flow indicator for the monitor (State Code, County Code, Site ID, Parameter, POC) is “N” or “W”.
Examples:
MH|I|06|073|1201|88101|2|CLIFFS|SSW|627.64|413.31
MH|I|TT|434|0007|11101|1|BUILDINGS|W|4|2
Format¶
Seq. |
Name |
Description |
Formatting Rules |
Required |
Key |
---|---|---|---|---|---|
1 |
Monitor Obstruction Info transaction identifier. |
Must = MH |
Always |
||
2 |
Indicator for Insert, Update, or Delete action. |
Must = I, U, or D |
Always |
||
3 |
The FIPS state code of the monitor, or “TT” to indicate that the next field on the transaction is a Tribal code. |
Must exist in STATES Reference Table or be ‘TT’ for Tribal Site |
Always |
Y |
|
4 |
The FIPS County Code of the site. If the previous field on the transaction contains “TT”, then the Tribal Code of the site. |
Must exist in COUNTIES (for state) or TRIBAL_AREAS Reference table |
Always |
Y |
|
5 |
Four digit number to uniquely identify site in county and/or tribe. |
Must exist in SITES table with {State Code, county Code} or Tribal Code |
Always |
Y |
|
6 |
The AQS parameter code assigned to the monitor in AQS. |
Must exist in PARAMETERS reference table. |
Always |
Y |
|
7 |
Parameter Occurrence Code: One or two digit number identifying a specific monitor for a parameter at the site. |
Must exist in MONITOR table for non-Insert actions. |
Always |
Y |
|
8 |
The type of obstruction responsible for the restricted air flow of a monitor. |
Must exist in PROBE OBSTRUCTION TYPES reference table. |
Always |
Y |
|
9 |
The true direction from the monitor to the obstruction. |
Must exist in COMPASS SECTORS reference table. |
Always |
||
10 |
The distance, in meters, between the probe and obstruction. |
Decimal. |
Always |
||
11 |
The height, in meters, of the top of the obstruction above the probe. |
Decimal. |
Always |