| Hours |
|---|
Kennewick:
8am to noon
1pm to 5pm
Monday-Friday
Pasco:
8am to noon
1pm to 5pm
Monday-Friday
Prosser Office
NEW HOURS!
Immunizations: Tuesday and Thursday; 9am to Noon and 1pm to 5pm.
Environmental Health: Monday and Thursday; 9am to 10:30am.
|
|
TDS is that portion of solids in water that can pass through a 2 micron filter. The more minerals dissolved into the water the higher the total dissolved solids.
Waters with high dissolved solids are generally of inferior palatability. In drinking water a limit of 500 mg/L is desirable.
Total Hardness
Originally hardness was understood to be a measure of the capacity of water to precipitate soap. Soap is precipitated chiefly by the calcium and magnesium ions present.
In conformity with current practice, total hardness is defined as the sum of the calcium and magnesium concentrations, both expressed as calcium carbonate, in milligrams per liter.
Often it is desirable to know hardness of source waters prior to treatment, or to determine if treatment is desired, and finished water after treatment (water softener) to determine treatment efficiency.
Sample Submission
If TDS or Hardness is desired contact the laboratory directly for container size and availability.
E-mail us with questions
|
About the BFHD 
Benton Franklin Health District