Common use of SAMPLE HOLDING TIME Clause in Contracts

SAMPLE HOLDING TIME. Listed below are the maximum sample holding times for the most commonly requested or critical analyses. In cases where the published holding times, as shown in approved methods, are in conflict with the holding times listed herein, the lesser holding time shall take precedence. In general, all samples should be analyzed by CONTRACTOR as soon as possible after submission by COUNTY. The times listed are the maximum times that samples may be held before analysis and still considered valid. The COUNTY may request “rush” analyses under the conditions noted in Section 2 above, whereas the maximum sample holding times may not apply. General Mineral Group: Maximum Sample Holding Time: Sodium 6 Months Potassium 6 Months Calcium 6 Months Magnesium 6 Months Carbonate 6 Months Bicarbonate 24 Months Chloride 28 Days Sulfate 28 Days Nitrate 48 Days Fluoride 28 Days Silica 28 Days Purgeable Halocarbons 7 Days Purgeable Aromatics 7 Days Purgeables 7 Days Base/Neutrals & Acids 7 Days (extraction); 40 Days (analysis) Bacteriological Group 6 Hours Nutrient Group 48 Hours Rainwater Group 24 Hours Pesticides, Herbicides, PCBs 7 Days (extraction); 40 Days (analysis)

SAMPLE HOLDING TIME. Listed below are the maximum sample holding times for the most commonly requested or critical analyses. In cases where the published holding times, as shown in approved methods, are in conflict with the holding times listed herein, the lesser holding time shall take precedence. In general, all samples should be analyzed by CONTRACTOR as soon as possible after submission by COUNTY. The times listed are the maximum times that samples may be held before analysis and still considered valid. The COUNTY may request “rush” analyses under the conditions noted in Section 2 above, whereas the maximum sample holding times may not apply. Maximum Sample Holding Time General Mineral Group: Maximum Sample Holding Time: Sodium 6 Months Potassium 6 Months Calcium 6 Months Magnesium 6 Months Carbonate 6 Months Bicarbonate 24 Months Chloride 28 Days Sulfate 28 Days Nitrate 48 Days Fluoride 28 Days Silica 28 Days Boron 6 Months Total Dissolved Solids 4 Weeks Conductivity 24 Hours Trace Metals 6 Months Purgeable Halocarbons 7 Days Purgeable Aromatics 7 Days Purgeables 7 Days Base/Neutrals & Acids 7 Days (extraction); 40 Days (analysis) Bacteriological Group 6 Hours Nutrient Group 48 Hours Rainwater Group 24 Hours Pesticides, Herbicides, PCBs 7 Days (extraction); 40 Days (analysis)