Category - Aqueous SamplesMethodsMinimum Qty.Recommended ContainersRequired PreservationHolding Time
Color 110.1-3 50 mL Plastic or Glass Bottles Cool to 4° C 48 Hours
Conductance120.1 50 mL Plastic or Glass Bottles Cool to 4° C 28 Days
Hardness130.1-2 100 mL Plastic or Glass Bottles Adjust pH <2, Cool to 4° C 180 Days
Odor140.1200 mL Glass Bottle Only Cool to 4° C 24 Hours
pH150.125 mL Plastic or Glass Bottle NoneAnalyze Immediately
Solids, Total Dissolved (TDS) 160.1100 mL Plastic or Glass Bottle Cool to 4° C 7 Days
Solids, Total Suspended (TSS) 160.2100 mL Plastic or Glass Bottle Cool to 4° C 7 Days
Solids, Total (TS) 160.3100 mL Plastic or Glass Bottle Cool to 4° C 7 Days
Solids, Total Volatile (TVS) 160.4100 mL Plastic or Glass Bottle Cool to 4° C 7 Days
Solids, Settleable (SS) 160.51 L Plastic or Glass Bottle Cool to 4° C 48 Hours
Turbidity180.1100 mL Plastic or Glass Bottle Cool to 4° C 48 Hours

Normal Hours of Operation

The lab is open 8:00 AM to 4:30 PM, Monday through Friday

Samples are only accepted according to the following schedule:

Monday through Thursday,  8:00 AM to 4:00 PM; Friday, 8:00 AM to 12:00 PM *Hours will vary to accommodate government holidays.

If you are submitting pool samples: 

  • Pool samples are only accepted between the hours of 8:00 AM and 3:00 PM.
  • Pseudomonas expedited turnaround time (rush order) is limited to 4-day and 5-day only.