National Monitoring Network

Nitrate Methods/Data

Please return to:

Jerry Diamond, Tetra Tech, Inc.

410-356-9005 (fax)

jerry.diamond@tetratech.com

Organization: U.S. Geological Survey

New York Water Science Center

425 Jordan Road

Troy, NY 12180

Contact Name: Stephen Wolcott swolcott@usgs.gov 518-285-5676

Michael McHale mmchale@usgs.gov 518-285-5675

Tricia Lincoln tarenga@usgs.gov 518-285-5612

Sample Collection
			Comments
Container type	 glass x plastic  other
Preservation method	 acid  mercuric chloride  freeze x other		Refrigeration
Sampling method available to public?	x Yes  No
Sample Processing and Analysis
Sample holding time	14 (days)
Sample filtration	x filtered  unfiltered		If filtered – filter type and mesh size 0.4 µm polycarbonate
Laboratory analysis method available to the public?	x Yes  No
Analysis method used	http://ny.water.usgs.gov/pubs/of/of95416/		Any modifications used?
Method detection limit (if known)	02.0 µmol/liter (units)		Reporting limit
QA/QC
Replicate samples collected?`		x Yes  No	Frequency 1 triplicate set per 50 samples
Matrix spike/ matrix spike duplicates performed?		 Yes x No	Frequency
Check or reference sample analyzed?		x Yes  No	Frequency 1 set of 2 QC’s every ten samples
Split sample analysis with other lab?		x Yes  No	Frequency http://ny.water.usgs.gov/pubs/of/of96167/ http://ny.water.usgs.gov/pubs/of/of01071/ other QA/QC reports are in progress
Meta Data
Meta data available to the public?		Sample Location info: x Yes  No Sample collection date: x Yes  No Reason for sampling:  Yes x No How samples collected: x Yes  No How samples analyzed: x Yes  No FGDC^1 metadata:  Yes  No QA/QC info: x Yes  No		???????????????
How are metadata available?		x Internet  CD x Upon request x other
Data Reporting
Final form of data		x hardcopy tables x electronic tables  other	http://pubs.usgs.gov/wdr/wdr-ny-03-1/ http://ny.cf.er.usgs.gov/nyc/unoono.cfm
Are data publicly available?		x Yes  No	On the Internet? Yes_x__ No___
Are ancillary data available for samples?		x temperature  salinity/x conductivity  dissolved oxygen x hydrology/flow x others

1 = Federal Geographic Data Committee             http://www.fgdc.gov/metadata/

National Monitoring Network

Nitrate Methods/Data

Please return to:

Jerry Diamond, Tetra Tech, Inc.

410-356-9005 (fax)

jerry.diamond@tetratech.com

Organization: PA DEP – Bureau of Laboratoires

Contact Name: Ted Lyter

Contact Phone # and email: 717-346-8294 plyter@state.pa.us

Sample Collection
			Comments
Container type	 plastic
Preservation method	 other		4 degree-c or below
Sampling method available to public?	 Yes
Sample Processing and Analysis
Sample holding time	2 (days)		We use 48 hours as the upper limit
Sample filtration	 unfiltered		If filtered – filter type and mesh size
Laboratory analysis method available to the public?	 Yes		Standard EPA method – see below
Analysis method used	EPA 353.2		Any modifications used? No
Method detection limit (if known)	0.017 mg/L (units)		Reporting limit is 0.04 mg/L
QA/QC
Replicate samples collected?`		 Yes Not on routine basis  No	Frequency One in ten
Matrix spike/ matrix spike duplicates performed?		 No	Frequency
Check or reference sample analyzed?		 Yes  No ??????????	Frequency
Split sample analysis with other lab?		 Yes  No ??????????	Frequency
Meta Data
Meta data available to the public?		Sample Location info:  Yes Sample collection date:  Yes Reason for sampling:  Yes How samples collected:  Yes How samples analyzed:  Yes FGDC^1 metadata:  Yes  No???? QA/QC info:  Yes  No?????
How are metadata available?		 Internet  CD  Upon request  other
Data Reporting
Final form of data		 hardcopy tables  electronic  other
Are data publicly available?		 Yes  No	On the Internet? Yes___ No___
Are ancillary data available for samples?		 temperature  salinity/conductivity  dissolved oxygen  hydrology/flow  others

1 = Federal Geographic Data Committee             http://www.fgdc.gov/metadata/