Common use of Nutrient Group Clause in Contracts

Nutrient Group. Nutrient samples will be submitted for analysis in two or three containers: one acidified with analytical grade sulfuric acid for analysis of nitrate, ammonia, total Kjeldahl nitrogen (TKN), and total phosphate; and one or two unpreserved for the remaining analyses. Seawater and fresh water samples will be treated similarly, with the exception of the ammonia and Kjeldahl nitrogen analyses. During the nesslerization of seawater, one milliliter of Xxxxxxxx Salts is added to minimize the interferences caused by the cations and anions in the seawater samples. Contractor will conduct analyses using the following methods or approved equivalent: Analysis Std Method EPA Method Conductivity 2510 B. 120.1 Turbidity 2130 B. 180.1 Analysis Std Method EPA Method pH 4500-H+ B. 150.1 Nitrate+Nitrite Nitrogen (NO2+NO3 as N) 4500-NO3 F. 353.2 Ammonia Nitrogen (NH3 as N) 4500-NH3 B. 350.1 4500-NH3 C. 350.1 4500-NH3 E. 350.1 Total Kjeldahl Xxxxxxxx (XXX) 0000-Xxxx B. 351.2 Total Phosphorus as Phosphate(PO4) 4500-P B1. 365.3 4500-P B2. 365.3 4500-P B3,4. 365.3 4500-P E. 365.3 Orthophosphate as P 4500-P E 365.3 Total Suspended Solids(TSS) 2540 D. 160.2 Volatile Suspended Solids 2540 E. 160.4

Nutrient Group. Nutrient samples will be submitted for analysis analyses in two or three containers: one acidified with analytical grade sulfuric acid for analysis of nitrate, ammonia, total Kjeldahl nitrogen (TKN), and total phosphate; and one or two unpreserved un-altered for the remaining analyses. Seawater and fresh water samples will be treated similarly, with the exception of the ammonia and Kjeldahl nitrogen analyses. During the nesslerization of seawater, one milliliter of Xxxxxxxx Salts is added to minimize the interferences caused by the cations and anions in the seawater samples. Contractor will conduct analyses using the following methods or approved equivalent: Analysis Std Method EPA Method Conductivity 2510 B. 120.1 Turbidity 2130 B. 180.1 Analysis Std Method EPA Method pH 4500-H+ H B. 150.1 Nitrate+Nitrite Nitrogen (NO2+NO3 as N) 4500-NO3 F. 353.2 Ammonia Nitrogen (NH3 as N) 4500-NH3 B. 350.1 350.2 4500-NH3 C. 350.1 350.2 4500-NH3 E. 350.1 350.2 Total Kjeldahl Xxxxxxxx (XXX) 0000Nitrogen 4500-Xxxx Norg B. 351.2 351.3 Total Phosphorus as Phosphate(PO4) Phosphate 4500-P B1. 365.3 365.2 4500-P B2. 365.3 365.2 4500-P B3,4. 365.3 365.2 4500-P E. 365.3 365.1 Orthophosphate as P 4500-P E 365.3 365.1 Total Suspended Solids(TSS) Non-Filterable Residue 2540 D. 160.2 Volatile Suspended Solids 2540 E. 160.4)

Nutrient Group. Nutrient samples will be submitted for analysis analyses in two or three containers: one acidified with analytical grade sulfuric acid for analysis of nitrate, ammonia, total Kjeldahl nitrogen (TKN), and total phosphate; and one or two unpreserved un-altered for the remaining analyses. Seawater and fresh water samples will be treated similarly, with the exception of the ammonia and Kjeldahl nitrogen analyses. During the nesslerization of seawater, one milliliter of Xxxxxxxx Salts is added to minimize the interferences caused by the cations and anions in the seawater samples. Contractor will conduct analyses using the following methods or approved equivalent: Analysis Std Method EPA Method Conductivity 2510 B. 120.1 Turbidity 2130 B. 180.1 Analysis Std Method EPA Method pH 4500-H+ H B. 150.1 Nitrate+Nitrite Nitrogen (NO2+NO3 as N) 4500-NO3 F. 353.2 Ammonia Nitrogen (NH3 as N) 4500-NH3 B. 350.1 350.2 4500-NH3 C. 350.1 350.2 4500-NH3 E. 350.1 350.2 Total Kjeldahl Xxxxxxxx (XXX) 0000Nitrogen 4500-Xxxx Norg B. 351.2 351.3 Total Phosphorus as Phosphate(PO4) Phosphate 4500-P B1. 365.3 365.2 4500-P B2. 365.3 365.2 4500-P B3,4. 365.3 365.2 4500-P E. 365.3 365.1 Orthophosphate as P 4500-P E 365.3 365.1 Total Suspended Solids(TSS) Non-Filterable Residue 2540 D. 160.2 Volatile Suspended Solids 2540 E. 160.4) 588280 Page 22 of 51