Water Quality Laboratory 2021-09-27T10:56:32+00:00

The Water Quality Laboratory

The Water Quality Laboratory is state-certified to quantify key nutrients (nitrogen, phosphorus, total organic carbon), suspended solids, bacteria and chlorophyll a in freshwater and estuarine samples. This laboratory provides analytical support for assessment of potable water supply reservoirs in North Carolina, and for the long- term monitoring of the Neuse River Estuary (CAAE’s Neuse Estuary Monitoring and Research Program, NEMReP), including pre- and post-sampling of major storms.

The CAAE provides low cost, high-quality analytical services to students and research programs upon request. Please contact our lab manager for further information. Learn more about our support to students, and their various research projects.

Certified Parameters – CAAE

Parameter Method(s) Year Certified
Chlorophyll a EPA 445.0, Rev. 1.2 (Fluorometric) (Aqueous) 2004
Enterococci IDEXX D Enterolert (MPN)      (Aqueous) 2010
pH SM 4500 H+B-2011 (Aqueous) 1995
TSS (Residue, Suspended) SM 2540 D-2015 (Aqueous) 1995
Ammonia-N SM 4500 NH3 G-2011 (Aqueous)
EPA 350.1, Rev. 2.0, 1993 (Aqueous)
1995
Total Kjeldahl N SM 4500 Norg D-2011 (Aqueous)
EPA 351.2, Rev. 2.0, 1993 (Aqueous)
1995
NO2N + NO3N SM 4500 NO3 F-2016 (Aqueous)
EPA 353.2, Rev. 2.0, 1993 (Aqueous)
1995
Total Phosphorus SM 4500 P F-2011 (Aqueous)
EPA 365.1, Rev. 2.0, 1993 (Aqueous)
1996
SRP (orthophosphate) SM 4500 P F-2011 (Aqueous)
EPA 365.1, Rev. 2.0, 1993 (Aqueous)
1995
Total Organic Carbon SM 5310 B-2014 (Combustion) (Aqueous) 2002

Analytical Laboratory Usage Rates

NC State University Center for Applied Aquatic Ecology Analytical Laboratory Usage Rates (within the UNC system) – Effective 10/01/2021.  These rates are for non-federally funded grants only.

Analysis (State-Certified) Cost Per Sample
Ammonia Nitrogen $16.25
Chlorophyll a $28.75
Nitrate + Nitrite Nitrogen $16.75
Orthophosphate $21.00
Total Kjeldahl Nitrogen $19.50
Total Organic Carbon $29.50
Total Phosphorus $15.75
Total Suspended Solids $16.75
Enterococcus $34.75
Preparing a sample for scanning electron microscopy (SEM) under a fume hood.

Preparing a sample for scanning electron microscopy (SEM) under a fume hood.

Setting up a routine analysis of Neuse River water samples for total organic carbon.

Setting up a routine analysis of Neuse River water samples for total organic carbon.

Loading the QuAAtro autoanalyzer with water samples for ammonium. This instrument also analyzes for phosphate and nitrate.

Loading the QuAAtro autoanalyzer with water samples for ammonium. This instrument also analyzes for phosphate and nitrate.