2016 DWR State Certification

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 Method 445.0 2004
Fecal Coliform Bacteria Std Method 9222D (MF) 2010
Enterococci ASTM Method D 65-3-99 Enterolert 2010
pH Std Method 4500 H B 1995
TSS (Residue, Suspended) Std Method 2540D 1995
Ammonia-N Std Method 4500 NH3 H
EPA Method 350-1
1995
Total Kjeldahl N EPA Method 351.1 1995
NO2N + NO3N Std Method 4500 NO3 F
EPA Method 353.2
1995
TP Std Method 4500 P F
EPA Method 365.1
1996
SRP (orthophosphate) Std Method 4500 P F
EPA Method 365.1
1995
TOC Std Method 5310B 2002
Additional parameters analyzed
(no state certification program available)
Silica Std Method 4500 SiO2 F
Urea Parsons et. al. (1984)

Analytical Laboratory Usage Rates

NC State University Center for Applied Aquatic Ecology Analytical Laboratory Usage Rates (within the UNC system) – Effective 08/28/2015.

Analysis (State-Certified) Cost Per Sample
Ammonia $13.65
Chlorophyll a $23.24
Nitrate + Nitrite $13.70
Orthophosphate $17.37
Total Kjeldahl Nitrogen $16.58
Total Organic Carbon $24.00
Total Phosphorus $12.99
Total Suspended Solids $13.83
Enterococcus $33.88
Fecal Coliform $31.67
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.