Drinking Water Testing Services

Water covers the majority of the earth’s surface, but only 1% is clean and safe to drink. This precious resource requires reliable drinking water testing services that are accurate, reliable, convenient, and customer-friendly.
  • Accuracy
    We have years of experience testing for large and small clients, from residential homeowners to city municipalities.
  • Reliability & Convenience
    Our safe and secure sample pickup routes and convenient supply ordering process exemplify our commitment to be there when you need us the most.
  • Friendly Service
    From homeowners to camp ground operators and municipality leaders to well drillers, we focus on building personal relationships with our customers.

*Due to holding time limits and shipping delays, we may not be able to accept drinking water samples from some states. Please check with your local AgSource location.*

Drinking Water Testing Options

Test includes
Purpose of Test
Annual Water
Coliform and Nitrate
Useful for monitoring water systems for contaminants and/or breaches in private well water.
Recommended annually.
Calcium, Copper, Hardness, Iron, Magnesium, Manganese, Potassium, Sodium, Sulfate and Zinc
Useful for monitoring well water for color, odor, taste, etc.
Recommended once every 5 to 10 years or anytime a change in color, odor or taste is noticed.
Coliform, Nitrate, pH, and the entire Mineral Package
Useful for establishing a baseline of water quality in a private well system and for monitoring changes in water quality.
Recommended once every 5 to 10 years or anytime a change in color, odor or taste is noticed.
TDS, pH, Chloride, Nitrate and the entire Mineral Package
Useful for monitoring water quality for agricultural operations.
Recommended annually if concerned with the health of animals due to water quality.
Poison Contamination
Arsenic, Lead and Pesticide Screen
Useful for monitoring wells for poisons found in water supplies.
Test if you have copper plumbing installed before 1985, well is located in northeast Wisconsin, live near a farm community that uses pesticides or if the nitrate level is over 10 ppm.

Additional Water Testing Options

Calcium, Iron, Manganese, Sodium, Arsenic, Copper, Magnesium, Potassium, Zinc
Organic Compounds
Biochemical Oxygen, Demand (BOD), Carbonaceous BOD, Chemical Oxygen Demand (COD), Oil & Grease, Organic Nitrogen
Nonmetals & Inorganic Compounds
Ammonia, Chloride, Fluoride, Sulfate, Nitrite, Total Nitrogen, Orthophosphate, Total Phosphorus TKN (Kjeldahl), Nitrate, Nitrate plus Nitrite
Physical Testing
Acidity, Alkalinity, Hardness Conductivity, pH, Turbidity, Volatile Acids Volatile Solids, Total Solids (TS) Total, Suspended Solids (TSS), Total Dissolved Solids (TDS)
Fecal Streptococcus, Iron Bacteria Test, Sulfur Bacteria Test, E. coli, Total Coliforms, Fecal Coliforms Enterococcus, Bacteria, Heterotrophic Plate Count

* Packages vary by location. For exact package details for your specific location, please contact your sales representative, email us or call the lab today.

Drinking Water Sampling Guide

Proper sampling is critical. It’s the first step to ensuring an accurate result. Please select from the links below for more details on water sampling instructions and techniques.

Drinking Water Resources

The Official Chain of Custody Form – All samples must have a chain of custody (COC) form when arriving at the laboratory. At a minimum, the following information needs to be provided for all samples:

  • Sample Identification
  • Date and time of collection
  • Name of the sample collector
  • Sample preservation
  • Sample matrix
  • Special instructions, if applicable
Chain of Custody Forms – include a COC form with all samples.

Holding Times – The maximum amount of time that can pass between sample collection and sample extraction/analysis is the Holding Time. Click here to view an example Holding Time chart.

Other Resources