MX - Monitor NAAQS Exclusion

The purpose of this transaction is to enable a monitor to be categorized as non-regulatory, i.e. have its data excluded from NAAQS calculations performed by AQS.

Previously, this tagging ability was implemented via a Monitor Type code of “NON-REGULATORY” (and prior to that, of “SPECIAL PURPOSE”). Monitor types have been revised, and now only the Monitor Exclusions indicator is used to determine if data from a monitor is to be excluded from regulatory data summaries.

Examples:

MX transaction in default mode
MX|I|06|105|0002|88101|1||20110818|20130806|Special Purpose Monitor, 24 months
MX transaction in Tribal mode
MX|I|TT|434|0007|11101|1||20051224|20070430|

Format

MX - Monitor NAAQS Exclusion transaction format

Seq.

Name

Description

Formatting Rules

Required

Key

1

Transaction Type

Monitor NAAQS Exclusion transaction identifier.

Must = MX

Always

2

Action Indicator

Indicator for Insert, Update, or Delete action.

Must = I, U, or D

Always

3

State Code / Tribal Indicator

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

County Code / Tribal Code

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

Site Number

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

Parameter Code

The AQS parameter code assigned to the monitor in AQS.

Must exist in PARAMETERS reference table.

Always

Y

7

POC

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

Pollutant Standard ID

AQS Code for the specific NAAQS standard from which to exclude this monitor’s data from design value calculations. Null means exclude from all standards.

Integer. Must exist in POLLUTANT_PERIOD_STANDARDS Reference Table.

No

9

Begin Date

Beginning of date range where the monitor is the primary for the parameter at the site.

YYYYMMDD.

Always

Y

10

End Date

End of date range where the monitor the primary for the parameter at the site.

YYYYMMDD.

No

11

Comment

Justification for NAAQS exclusion.

Text, up to 2000 characters.

Insert