PUBLICATIONS--Inclusion of NASQAN Pesticide Subnetwork Data in 1981 Water Year Annual Water-Resources Data Reports 




In Reply Refer To:                           March 17, 1982
EGS-Mail Stop 412

QUALITY OF WATER BRANCH TECHNICAL MEMORANDUM NO. 82.09

Subject: PUBLICATIONS--Inclusion of NASQAN Pesticide 
         Subnetwork Data in 1981 Water Year Annual Water-
         Resources Data Reports

We have recently learned that, because of budget constraints, 
the EPA Toxicant Analysis Center (TAC) in Bay St. Louis, 
Mississippi, was unable to analyze samples stored there which 
were collected by USGS personnel as part of the USGS/EPA 
Pesticide Monitoring Program (NASQAN Pesticide Subnetwork). 
Because of the excessive storage time of the samples and 
their condition of storage, we believe that erroneous data 
might be obtained if the samples were analyzed. We have 
therefore requested that EPA discard the samples.

The table below lists the samples that are being discarded.

  Water-phase samples               Bottom-material samples

half of November 1980 set            all of May 1980 set 
all of February 1981 set             all of November 1980 set 
all of May 1981 set                  all of May 1981 set

The only exceptions to the above table are selected bottom-
material samples collected in Montana in November 1980 and 
May 1981 which will be forwarded to the Montana District at 
their request. The August 1981 sampling for water-phase 
samples was cancelled, so there are no samples for that 
period. Approximately half of the November 1980 water-phase 
samples were analyzed. The results of those analyses were 
forwarded to the Quality of Water Branch and entered into 
WATSTORE.

Because all of the analyses performed by the TAC have been 
entered into WATSTORE, Districts should not wait any further 
for 1981 Water Year NASQAN Pesticide Subnetwork data to be 
included in their 1981 Water Year Annual Water-Resources Data 
Reports. Please contact Jim Schornick or Mike Yurewicz of the 
Quality of Water Branch (FTS 928-6834) if there are any 
questions about the above.

Effective October 1, 1982, as stated in Quality of Water 
Branch Technical Memorandum 82.03, the Geological Survey took 
over the responsibility for both sample collection and sample 
analysis for the NASQAN Pesticide Subnetwork.



                         R. J. Pickering
                         Chief, Quality of Watet Branch

"This memorandum does not supersede any previous memorandum."

Key Words: water quality, pesticides, publications, 
           data handling, NASQAN Pesticide Subnetwork, 
           Annual Water-Resources Data Reports

WRD Distribution: A, FO, PO