Description |
Date |
Type |
"National Ambient Air Quality Standard: Particulate Matter; Final Rule."
This rule reduces the PM2.5 collocation requirement from 25% to 15%. |
04/14/03 |
|
Air Monitoring Network Assessments memo and draft guidance document for
conducting network assessments is posted in the "PM 2.5 Monitoring" area. |
06/14/02 |
|
Copy of a memorandum approving the use of an alternative WINS
impactor oil in PM2.5 federal reference method samplers
is posted in the "Federal Reference Method" area. |
01/26/01 |
|
Memorandum that transmits information on a national user modification
allowing an extension of the PM2.5 mass filter retrieval
period from 96 hours to 177 hours |
03/01/02 |
|
A copy of the "6-day" sampling schedule calendar for 2001 |
12/06/00 |
|
A copy of the "1/6-day and 1/3-day" sampling schedule calendar
for 2001 |
12/06/00 |
|
"Additional Methods of Maintenance for the R&P Partisol Plus
Model 2025 Sequential Air Sampler" |
10/17/00 |
|
"Additional Methods of Maintenance for the Andersen RAAS-300
Sequential Air Sampler" |
10/17/00 |
|
A copy of "Draft Guidance for Acceptable Procedures for Archiving
PM2.5 Samples" |
02/07/00 |
|
A copy of the OAQPS/EMAD J. David Mobley 01/19/00 memorandum,
"Additional Guidance on PM2.5 Cassette Handling and Transportation" |
01/20/00 |
|
A copy of the OAQPS/EMAD J. David Mobley 12/21/99 memorandum,
"Use of Collocated PM2.5 Data and Parameter Occurrence Codes" |
01/03/00 |
|
A copy of the re-delegation of authority for archiving PM2.5
filters that are collected at SLAMS |
12/06/99 |
|
A copy of the every 3rd and 6th day sampling schedule calendar
for 2000 |
11/24/99 |
|
EPA/OAQPS June 11, 1999, J. David Mobley memorandum, "Use
of PM Reference Methods and Daylight Savings Time" |
06/22/99 |
|
OAQPS/EMAD 02/03/99, William F. Hunt, Jr., memorandum, "Use
of Make-up PM Samples to Replace Scheduled PM Samples" |
02/04/99 |
|
Copy of the every 3rd day sampling schedule calendar for 1999 |
10/07/98 |
|
Copy of the every 3rd day sampling schedule calendar for 1998 |
10/07/98 |
|
The final version of EPA's "Guidance for Using Continuous
Monitors in PM2.5 Monitoring Networks," EPA-454/R-98-012,
May 1998 |
06/05/98 |
|
OAQPS/EMAD 05/18/98, William F. Hunt, Jr., memorandum, "PM2.5
Site Types and Sampling Frequency During CY-99". |
05/28/98 |
|
OAQPS/EMAD 04/09/98, William F. Hunt, Jr., memorandum, "Guidelines
for Granting Exemptions for Daily PM2.5 Monitoring" |
04/15/98 |
|
OAQPS/EMAD 12/02/97, William F. Hunt, Jr., memorandum, "Waivers
for PM10 Sampling Frequency" |
03/13/98 |
|
OAQPS/EMAD 09/15/97, William F. Hunt, Jr., memorandum, "Collection
and Reporting of PM Data" |
03/09/98 |
|