Water Quality Monitoring Report - Noosa Civic - November 2009-2010 - Eenie Creek Rd NOOSAVILLE · 132002.220285

Page                         6 of 8
Work Order                   EB1003890
Client                       DUKE ENVIRONMENTAL
Proloo                       DE0923                                                                                                                                                                                          ALS

Brief Method Summaries
The analytical procedures used by the Environmental Division have been developed from established internationally recognized procedures such as those published by the US EPA, APHA, AS and NEPM. In house
developed procedures are employed in the absence of documented standards or by client request. The following report provides bnef descriptions of the analytical procedures employed for results reported in the
Certificate of Analysis. Sources from which ALS methods have been developed are provided vnlhin the Method Descriptions.

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 Full Algal Identification and Count                          AIC-WAT               WATER          Complete Algal Identification and Count in water matrices conducted by Subcontracting Laboratory

 (Water)
 Suspended Solids (High Level)                                EA025H                WATER          APHA 21st ed., 2540D A gravimetric procedure employed to determine the amount of 'non-filterable' residue in a
                                                                                                   aqueous sample. The prescribed GFC (1.2um) filter is rinsed with deionised water. oven dried and weighed
                                                                                                   prior to analysis   A well-mixed sample is filtered through a glass fibre filter (12um). The residue on the filter
                                                                                                   paper is dried at 104+/-2C . This method is compliant with NEPM (1999) Schedule B(3) (Appdx. 2)
 Hardness as CaCO3                                             EA065                WATER          APHA 21st ed., 2340 B. This method is compliant with NEPM (1999) Schedule B(3) (Appdx. 2)
 Major Cations - Dissolved                                    E D093F               WATER          APHA 21st ed., 3120; US EPA SW 846 - 6010 The ICPAES technique ionises the 0.45um filtered sample atoms
                                                                                                   emitting a characteristic spectrum. This spectrum is then compared against matrix matched standards for
                                                                                                   quantification. This method is compliant with NEPM (1999) Schedule B(3) (Appdx. 2)
 Dissolved Metals by ICP-MS - Suite A                        EG020A-F               WATER          (APHA 21st ed., 3125; USEPA SW846 - 6020, ALS QWI-EN/EGO20): Samples are 0.45 um filtered prior to
                                                                                                   analysis. The ICPMS technique utilizes a highly efficient argon plasma to ionize selected elements. Ions are
                                                                                                   then passed into a high vacuum mass spectrometer, which separates the analytes based on their distinct mass
                                                                                                   to charge ratios prior to their measurement by a discrete dynode ion detector.
Ammonia as N by Discrete analyser                             EK055G                WATER          APHA 21st ed., 4500-NH3 G Ammonia is determined by direct colorimetry by Discrete Analyser. This method is
                                                                                                   compliant with NEPM (1999) Schedule B(3) (Appdx. 2)
 Nitrite as N by Discrete Analyser                            EK057G                WATER          APHA 21st ed., 4500-NO2- B. Nitrite is determined by direct colourimetry by Discrete Analyser. This method is
                                                                                                   compliant with NEPM (1999) Schedule B(3) (Appdx. 2)
 Nitrate as N by Discrete Analyser                            EK058G                WATER          APHA 21st ed., 4500-NO3- F. Nitrate is reduced to nitrite by way of a cadmium reduction column followed by
                                                                                                   quantification by Discrete Analyser. Nitrite is determined seperately by direct colourimetry and result for Nitrate
                                                                                                   calculated as the difference between the two results. This method is compliant with NEPM (1999) Schedule B(3)
                                                                                                   (Appdx. 2)

 Nitrite and Nitrate as N (NOx) by Discrete                   EK059G                WATER          APHA 21st ed., 4500-NO3- F. Combined oxidised Nitrogen (N02+NO3) is determined by Cadmium Reduction
Analyser                                                                                           and direct colounmetry by Discrete Analyser. This method is compliant with NEPM (1999) Schedule B(3) (Appdx.
                                                                                                   2)
Total Kjeldahl Nitrogen as N By Discrete                      EK061G                WATER          APHA 21st ed.. 4500-Norg D. 25mL water samples are digested using a traditional Kjeldahl digestion followed

Analyser                                                                                           by determination by Discrete Analyser. This method is compliant with NEPM (1999) Schedule B(3) (Appdx. 2)

Total Nitrogen as N (TKN + Nox) By                            EKD62G                WATER          APHA 21st ed., 4500-Norg / 4500-NO3- This method is compliant with NEPM (1999) Schedule B(3) (Appdx. 2)

Discrete Analyser
Total Phosphorus as P By Discrete                             EK067G                WATER          APHA 21st ed., 4500-P B&F This procedure involves sulphuric acid digestion of a 100mL sample to break
Analyser                                                                                           phosphorus down to orthophosphate. The orthophosphate reacts with ammonium molybdate and antimony
                                                                                                   potassium tartrate to form a complex which is then reduced and its concentration measured at 880nm using
                                                                                                   Discrete Analyser. This method is compliant with NEPM (1999) Schedule B(3) (Appdx 2)




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